ASME BPVC.X-2017

Fiber-Reinforced Plast ic Pressure Vessels

SECTION X

2017ASME Boiler andPressure Vessel CodeAn International Code

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XFIBER-REINFORCED PLASTICPRESSURE VESSELSASME Boiler and Pressure Vessel Committeeon Fiber-Reinforced Plastic Pressure Vessels

AN INTERNATIONAL CODE

2017 ASME Boiler &Pressure Vessel Code2017 Edition July 1, 2017

Two Park Avenue • New York, NY • 10016 USA

Date of Issuance: July 1, 2017

This international code or standard was developed under procedures accredited as meeting the criteria forAmerican National Standards and it is an American National Standard. The Standards Committee that approvedthe code or standard was balanced to assure that individuals from competent and concerned interests havehad an opportunity to participate. The proposed code or standard was made available for public review and com-ment that provides an opportunity for additional public input from industry, academia, regulatory agencies, andthe public-at-large.ASME does not “approve,” “rate,” or “endorse” any item, construction, proprietary device, or activity.ASME does not take any position with respect to the validity of any patent rights asserted in connection with any

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tablished ASME procedures and policies, which precludes the issuance of interpretations by individuals.The endnotes and preamble in this document (if any) are part of this American National Standard.

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publisher.

Library of Congress Catalog Card Number: 56-3934Printed in the United States of America

Adopted by the Council of The American Society of Mechanical Engineers, 1914; latest edition 2017.

The American Society of Mechanical EngineersTwo Park Avenue, New York, NY 10016-5990

Copyright © 2017 byTHE AMERICAN SOCIETY OF MECHANICAL ENGINEERS

All rights reserved

TABLE OF CONTENTS

List of Sections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xiiiForeword . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xvStatement of Policy on the Use of the Certification Mark and Code Authorization in Advertising . . . . . . . . . . xviiStatement of Policy on the Use of ASME Marking to Identify Manufactured Items . . . . . . . . . . . . . . . . . . . . . . xviiSubmittal of Technical Inquiries to the Boiler and Pressure Vessel Standards Committees . . . . . . . . . . . . . . . xviiiPersonnel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xxiIntroduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xlSummary of Changes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xlivList of Changes in Record Number Order . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . lCross-Referencing and Stylistic Changes in the Boiler and Pressure Vessel Code . . . . . . . . . . . . . . . . . . . . . . . liii

Part RG General Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

Article RG-1 Scope and Jurisdiction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1RG-100 Scope . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1RG-110 Application Limitations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1RG-120 Jurisdiction of Section X . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

Article RG-2 Organization . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3RG-200 Organization of This Section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

Article RG-3 Responsibilities and Duties . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4RG-300 Responsibilities and Duties . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4RG-310 User’s Responsibilities — Design Specification . . . . . . . . . . . . . . . . . . . . . . . 4RG-320 Fabricator’s Responsibilities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4RG-330 Inspector’s Duties . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Article RG-4 Fabrication Methods . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7RG-400 Fabrication Methods . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Part RM Material Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Article RM-1 General Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8RM-100 Laminate Materials . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8RM-110 Fiber System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8RM-120 Resin System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8RM-140 Use of Two or More Materials Specifications or Processes in Fabricating a

Class I Vessel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10RM-150 Mechanical Properties of Lamina for Class II Vessels . . . . . . . . . . . . . . . . . . 10

Article RM-2 Miscellaneous Pressure Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11RM-200 General Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11RM-210 Miscellaneous Metallic Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Part RD Design Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

Article RD-1 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12RD-100 Scope . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12RD-110 Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12RD-120 Loadings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13RD-130 Design Restrictions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14RD-140 Design Allowances for Degradation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14RD-150 Methods of Fabrication in Combination . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

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RD-160 Proof of Design Adequacy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

Article RD-2 Shells of Revolution Under Internal Pressure . . . . . . . . . . . . . . . . . . . . . 15RD-200 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Article RD-3 Shells of Revolution Under External Pressure . . . . . . . . . . . . . . . . . . . . . 16RD-300 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16RD-310 Qualification of Vessels for External Pressure Service . . . . . . . . . . . . . . . . . 16

Article RD-4 Secondary Bonding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17RD-400 Design of Secondary Bonded Joints . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

Article RD-5 Openings and Their Reinforcement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18RD-500 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18RD-510 Qualification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18RD-520 Restrictions for Class II Vessels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

Article RD-6 Nozzles and Other Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19RD-600 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19RD-610 Qualifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19RD-620 Integral Flanged Nozzles for Class II Vessels . . . . . . . . . . . . . . . . . . . . . . . . . 19

Article RD-7 Bolted Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27RD-700 Flat Heads, Covers, and Blind Flanges . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27RD-710 Bolted Flanged Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27RD-720 Openings in Flat Metallic Heads, Metallic Covers, and Metallic Blind

Flanges . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28RD-730 Welded or Brazed Connections to Metal Flat Heads, Covers, or Blind

Flanges . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

Article RD-8 Quick‐Actuating Closures (for Class I Vessels Only) . . . . . . . . . . . . . . . . 29RD-800 General Design Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

Article RD-9 Attachments and Supports . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30RD-900 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30RD-910 Qualification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

Article RD-10 Access and Inspection Openings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31RD-1000 General Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31RD-1010 Equipment of Vessels Requiring Access or Inspection Openings . . . . . . . . 31RD-1020 Size of Manhole Openings for Class I Vessels . . . . . . . . . . . . . . . . . . . . . . . . 31RD-1030 Size of Manhole Openings for Class II Vessels . . . . . . . . . . . . . . . . . . . . . . . . 31RD-1040 Minimum Gasket Bearing Widths for Manhole Cover Plates . . . . . . . . . . . . 32RD-1050 Threaded Openings in Class I Vessels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32RD-1060 Threaded Openings in Class II Vessels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

Article RD-11 Mandatory Design Rules for Class II Vessels . . . . . . . . . . . . . . . . . . . . . . 33RD-1100 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33RD-1110 Design Basis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33RD-1120 Design Limitations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33RD-1130 Design Acceptability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33RD-1140 Loadings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33RD-1150 Vessel Parts Subject to Design Analysis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33RD-1160 Laminate Composition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33RD-1170 Design Rules — Method A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35RD-1180 Discontinuity Analysis — Method B . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49

Article RD-12 Laminate Stiffness Coefficients . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54RD-1200 Laminate Stiffness Coefficients . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54RD-1210 Stiffness Coefficients for Design by Method B Rules . . . . . . . . . . . . . . . . . . . 54RD-1220 Nomenclature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54RD-1230 Lamina Reduced Stiffness . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56

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RD-1240 Stiffness Coefficients for the Laminate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57RD-1250 Procedure for Calculating the Stiffness Coefficients . . . . . . . . . . . . . . . . . . . 58

Part RF Fabrication Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59

Article RF-1 General Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59RF-100 Scope . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59RF-110 Procedure Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59

Article RF-2 Special Fabrication Requirements for Bag‐Molding Process (for Class IVessels Only) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60

RF-200 Fiber Content . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60RF-210 Form of Fiber Reinforcement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60RF-220 Molds . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60RF-230 Liners . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61RF-240 Openings in Vessels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61RF-250 Molded‐in Fittings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61

Article RF-3 Special Fabrication Requirements for Centrifugal‐Casting Process (forClass I Vessels Only) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62

RF-300 Fiber Content . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62RF-310 Form of Reinforcement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62RF-320 Mandrels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62RF-330 Liners . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62RF-340 Openings in Vessels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62

Article RF-4 Special Fabrication Requirements for Filament‐Winding Process(Classes I and II) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63

RF-400 Fiber Content . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63RF-410 Form of Reinforcement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63RF-420 Mandrels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63RF-430 Liners . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64RF-440 Openings in Vessels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64

Article RF-5 Special Fabrication Requirements for Contact‐Molding Process(Classes I and II) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65

RF-500 Fiber Content . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65RF-510 Form of Fiber Reinforcement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65RF-520 Molds . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65RF-530 Liners . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65RF-540 Openings in Vessels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66

Article RF-6 Special Fabrication Requirements for Matched Molded Heads (Usedfor Closures for Centrifugally Cast Vessels — for Class I VesselsOnly) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67

RF-600 Content . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67RF-610 Form of Fiber Reinforcement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67RF-620 Molds . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68RF-630 Openings in Heads . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68

Article RF-7 Special Fabrication Requirements for Joining Components . . . . . . . . . 69RF-700 Procedure Specifications and Qualifications . . . . . . . . . . . . . . . . . . . . . . . . . 69

Part RQ Qualification Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70

Article RQ-1 Scope . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70RQ-100 Responsibility for Qualification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70RQ-110 Maintenance of Procedure Specification and Qualification Records . . . . . . 70RQ-120 Procedure Specification Qualification Forms . . . . . . . . . . . . . . . . . . . . . . . . . 70RQ-130 Means to Be Used in Qualifying Class I Designs and Fabricating Procedures 71RQ-140 Means for Qualifying Class II Vessel Design and Fabrication . . . . . . . . . . . . 71

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Article RQ-2 Special Requirements for Bag‐Molding Procedure Qualification (ClassI Vessels) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73

RQ-200 Essential Variables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73

Article RQ-3 Special Requirements for Centrifugal‐Casting Procedure Qualification(Class I Vessels) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74

RQ-300 Essential Variables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74

Article RQ-4 Special Requirements for Filament‐Winding Procedure Qualification(Class I Vessels) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75

RQ-400 Essential Variables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75

Article RQ-5 Special Requirements for Contact‐Molding Procedure Qualification(Class I Vessels) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76

RQ-500 Essential Variables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76

Article RQ-6 Special Requirements for Class II Vessels . . . . . . . . . . . . . . . . . . . . . . . . . 77RQ-600 Essential Design Variables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77

Part RR Pressure Relief Devices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78

Article RR-1 General Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78RR-100 Protection Against Overpressure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78RR-110 Types of Overpressure Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78RR-120 Set Pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78RR-130 Permissible Overpressures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78

Article RR-2 Provisions in Vessels for Installation of Pressure Relief Devices . . . . 80RR-200 Number, Size, and Location of Connections . . . . . . . . . . . . . . . . . . . . . . . . . . 80RR-210 Stop Valves Between the Vessel and Pressure Relief Device . . . . . . . . . . . . 80RR-220 Discharge Lines From Pressure Relief Devices . . . . . . . . . . . . . . . . . . . . . . . 80

Part RT Rules Governing Testing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81

Article RT-1 Testing Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81RT-100 Scope . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81RT-110 Fabricator’s Responsibility . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81RT-120 Inspector’s Duties . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81

Article RT-2 Design and Procedure Qualification Test Requirements for Class IVessels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82

RT-200 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82RT-210 Qualification Checks and Examinations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82RT-220 Qualification Tests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83

Article RT-3 Quality Control Test and Examination Requirements for Class IVessels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86

RT-300 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86RT-310 Frequency of Cyclic Pressure and Qualification Pressure Tests . . . . . . . . . 86RT-320 Frequency of Determination of Weight of Resin and Fiber . . . . . . . . . . . . . 86RT-330 Frequency of Volumetric Expansion Tests . . . . . . . . . . . . . . . . . . . . . . . . . . . 86RT-340 Frequency of Thickness Checks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86

Article RT-4 Production Test Requirements for Class I Vessels . . . . . . . . . . . . . . . . . 87RT-400 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87RT-410 Visual Examination . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87RT-420 Thickness Check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88RT-430 Vessel Weight . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88RT-440 Barcol Hardness Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88RT-450 Hydrostatic Leakage Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88RT-460 Conditions Under Which Pneumatic Leakage Test May Be Used . . . . . . . . 88

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Article RT-5 Hydrostatic Testing Procedures and Equipment for Class I and Class IIVessels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90

RT-500 Provision of Vents at High Points . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90RT-510 Test Gages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90RT-520 Calibration of Acoustic Emission Equipment . . . . . . . . . . . . . . . . . . . . . . . . . 90

Article RT-6 Acceptance Test Procedure for Class II Vessels . . . . . . . . . . . . . . . . . . . . 91RT-600 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91RT-610 Acceptance Checks and Examinations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91RT-620 Acceptance Tests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91RT-630 Penetrant Examination . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92

Article RT-7 Determination of Mechanical Properties of Lamina for Use With ClassII Vessels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93

RT-700 Required Mechanical Properties of the Lamina . . . . . . . . . . . . . . . . . . . . . . . 93

Article RT-8 Test Methods for Determining Damage‐Based Design Criterion . . . . . 95RT-800 Scope . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95RT-810 Referenced Documents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95RT-820 Apparatus, Loading Procedure, and Data Analysis . . . . . . . . . . . . . . . . . . . . 95

Part RI Inspection Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96

Article RI-1 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96RI-100 Scope . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96RI-110 Qualification of Inspectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96RI-120 Access for Inspector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96RI-130 Inspector’s Duties . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96RI-140 Inspection of Material . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97RI-150 Inspection During Fabrication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97RI-160 Alternative Inspection for Multiple, Duplicate Fabrication . . . . . . . . . . . . . 97

Article RI-2 Special Inspection Requirements for Bag Molding (Class I Vessels) . . 98RI-200 Check of Bag‐Molding Procedure Specification Qualification . . . . . . . . . . . . 98RI-210 Visual Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 98

Article RI-3 Special Inspection Requirements for Centrifugal Casting (Class IVessels) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 99

RI-300 Check of Centrifugal‐Casting Procedure Specification Qualification . . . . . . 99RI-310 Visual Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 99

Article RI-4 Special Inspection Requirements for Filament Winding . . . . . . . . . . . . 100RI-400 Check of Filament‐Winding Procedure Specification Qualification . . . . . . . 100RI-410 Visual Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100

Article RI-5 Special Inspection Requirements for Contact Molding . . . . . . . . . . . . . 101RI-500 Check of Contact‐Molding Procedure Specification Qualification . . . . . . . . 101RI-510 Visual Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 101

Part RS Marking, Stamping, and Reports . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 102

Article RS-1 Contents, Methods, and Means of Marking . . . . . . . . . . . . . . . . . . . . . . . . 102RS-100 Required Marking for Vessels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 102RS-110 Application of Stamp to Vessel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 102RS-120 Part Marking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 103RS-130 Nameplate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 103

Article RS-2 Use of Certification Mark Stamp . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 104RS-200 Certification Mark Stamp Bearing Official Mark . . . . . . . . . . . . . . . . . . . . . . 104

Article RS-3 Report Forms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 105RS-300 Fabricator’s Data Reports . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 105

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Mandatory Appendix 1 Quality Control System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1061-100 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1061-110 Outline of some of the Features to Be Included in the Quality Control

System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 106

Mandatory Appendix 2 Capacity Conversions for Safety Valves . . . . . . . . . . . . . . . . . . . . . . . . . . . 1082-100 Requirements for Capacity Conversions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 108

Mandatory Appendix 4 Glossary of Terms Related to Fiber‐Reinforced Plastics . . . . . . . . . . . . 111

Mandatory Appendix 5 Specific Gravity of Liquid Resins . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1205-100 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1205-200 Apparatus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1205-300 Safety Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1205-400 Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1205-500 Calculations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1205-600 Report . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 120

Mandatory Appendix 6 Structural Laminate Visual Acceptance Criteria . . . . . . . . . . . . . . . . . . . 1216-100 Structural Laminate Visual Acceptance Criteria . . . . . . . . . . . . . . . . . . . . . . 121

Mandatory Appendix 7 Standard Units for Use in Equations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 126

Mandatory Appendix 8 Class III Vessels With Liners for Gaseous Hydrogen in StationaryService . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 127

8-100 Scope . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1278-200 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1278-300 Materials . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1288-400 Design . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1308-500 Fabrication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1308-600 Examination . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1318-700 Testing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1368-800 Stamping and Nameplates . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1418-900 Quality Program . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1418-1000 Retention of Data Reports . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 142

Mandatory Appendix 9 Establishing Governing Code Editions, Addenda, and Cases for FRPPressure Vessels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 149

9-100 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1499-200 Design . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1499-300 Materials . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1499-400 Fabrication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1499-500 Examination . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1499-600 Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1499-700 Testing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1509-800 Overpressure Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1509-900 Field Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1509-1000 Certification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 150

Mandatory Appendix 10 Laminates With Load-Sharing Metallic Shells for High PressureService . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 151

10-100 Scope . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15110-200 General Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15110-300 Materials . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15210-400 Fabrication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15510-500 Examination and Testing Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15610-600 Laminate Procedure Qualification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15810-700 Inspector’s Duties . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 162

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Nonmandatory Appendix AA Suggested Methods of Preliminary Design for Class I Vessels . . . . . . . 163

Article AA-1 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 163AA-100 Scope . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 163

Article AA-2 Shells of Revolution Under Internal Pressure . . . . . . . . . . . . . . . . . . . . . 164AA-200 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 164AA-210 Die‐Formed Heads, Pressure on Concave Side . . . . . . . . . . . . . . . . . . . . . . . 165

Article AA-3 Shells of Revolution Under External Pressure . . . . . . . . . . . . . . . . . . . . . 166AA-300 General Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 166

Article AA-4 Reinforcement of Openings in Vessels . . . . . . . . . . . . . . . . . . . . . . . . . . . . 167AA-400 General Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 167AA-410 Reinforcement for Internal Pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 167

Article AA-5 Attachments and Supports . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 168AA-500 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 168AA-510 Attachments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 168AA-520 Supports . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 168

Nonmandatory Appendix AB Installation and Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 171AB-100 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 171

Nonmandatory Appendix AC Discontinuity Stresses for Class II, Method B Vessels . . . . . . . . . . . . . . 173

Article AC-1 Examples of Discontinuity Stresses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 173AC-100 Example Illustrating the Application of Discontinuity Analysis . . . . . . . . . . 173

Article AC-2 Examples of Stress Analysis of Cylindrical Shells . . . . . . . . . . . . . . . . . . 179AC-200 Sign Convention and Nomenclature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 179AC-210 Principal Stresses and Stress Intensities Due to Internal Pressure . . . . . . . 179AC-220 Bending Analysis for Uniformly Distributed Edge Loads . . . . . . . . . . . . . . . 180AC-230 Displacements, Bending Moments, and Shearing Forces in Terms of Con-

ditions at Reference Edge, x = 0 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 180AC-240 Principal Stresses Due to Bending . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 181

Article AC-3 Examples of Stress Analysis of Spherical Shells . . . . . . . . . . . . . . . . . . . . 183AC-300 Scope . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 183AC-310 Nomenclature and Sign Convention . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 183AC-320 Principal Stresses and Stress Intensities Resulting From Internal or Exter-

nal Pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 184AC-330 Bending Analysis for Uniformly Distributed Edge Loads . . . . . . . . . . . . . . . 185AC-340 Alternate Bending Analysis of a Hemispherical Shell Subjected to Uniformly

Distributed Edge Loads . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 186

Article AC-4 Examples of Stress Analysis of Flat Circular Heads . . . . . . . . . . . . . . . . 187AC-400 Scope . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 187AC-410 Nomenclature and Sign Convention . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 187AC-420 Pressure and Edge Loads on Circular Flat Plates . . . . . . . . . . . . . . . . . . . . . 187AC-430 Flat Plate Pressure Vessel Heads . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 188AC-440 Geometry Constants . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 189AC-450 Stress Intensities in a Flat Plate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 190

Nonmandatory Appendix AD Laminate Theory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 191AD-100 Scope . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 191AD-200 Standard Notation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 191AD-300 Basic Assumptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 191AD-310 Nomenclature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 191AD-400 Lamina (Ply) Properties . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 191AD-500 Illustrative Example . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 192AD-510 Strain‐Space Failure Envelopes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 202

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Nonmandatory Appendix AF Examples for Design Rules for Class II Vessels . . . . . . . . . . . . . . . . . . . . 206AF-100 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 206AF-200 Cylindrical Shells Under Uniform Internal Pressure (See RD-1171.1) . . . . 206AF-210 Spherical Shells Under Internal Pressure (See RD-1171.2) . . . . . . . . . . . . . 206AF-300 Cylindrical Shells Under External Pressure (See RD-1172.1) . . . . . . . . . . . 206AF-310 Spherical Shells Under Uniform External Pressure (See RD-1172.2) . . . . . 207AF-400 Thickness of Heads Under Internal Pressure (See RD-1173.1) . . . . . . . . . . 207AF-410 Thickness of Heads Under External Pressure (See RD-1173.2) . . . . . . . . . . 207AF-420 Reinforcement of Openings and Nozzle Attachments (See RD-1174.2) . . . 207AF-500 Head‐to‐Shell Joint Overlay Subject to Internal Pressure (See RD-1175.2) 208

Nonmandatory Appendix AG Guide to Information Appearing on Certificate of Authorization (SeeFigure AG-1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 209

Nonmandatory Appendix AH Guidance for the Use of U.S. Customary and SI Units in the ASME Boilerand Pressure Vessel Code . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 211

AH-100 Use of Units in Equations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 211AH-200 Guidelines Used to Develop SI Equivalents . . . . . . . . . . . . . . . . . . . . . . . . . . 211AH-300 Soft Conversion Factors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 213

Nonmandatory Appendix AI Rigorous NASA SP‐8007 Solution for Lateral and LongitudinalPressure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 214

AI-100 Buckling Example . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 215

Nonmandatory Appendix AJ Forms Required by Section X . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 218

Nonmandatory Appendix AK Lamina Elastic Constants — Micromechanics . . . . . . . . . . . . . . . . . . . . . 254AK-1 Lamina Elastic Constants . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 254AK-2 Nomenclature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 254AK-3 Preliminary Calculations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 254AK-4 Micromechanics Equations for a Unidirectional Layer . . . . . . . . . . . . . . . . . 256AK-5 Micromechanics of a Randomly Distributed, Fiber-Reinforced Lamina . . . 257

Nonmandatory Appendix AL Fire and Excessive Heat Exposure Guidance . . . . . . . . . . . . . . . . . . . . . . 263AL-100 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 263AL-200 Suggested Methods to Mitigate Fire Exposure . . . . . . . . . . . . . . . . . . . . . . . . 263

FIGURESRD-620.3 Flange Tolerances . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23RD-620.4(a) Plate‐Type Gussets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24RD-620.4(b) Typical Cone‐Type Gusset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24RD-620.5 Flush Nozzle Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25RD-620.6 Penetrating Nozzle Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26RD-700.1 Acceptable Types of Flat Heads for Class I Vessels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27RD-1120.1 Design Limitations for Class II Vessels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34RD-1174.2 Dimensions of Reinforcing Pad and Nozzle Overlays . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38RD-1174.3 Stress Concentration Factors for a Circular Hole in a Pressurized Cylindrical Shell . . . . . . 40RD-1175.2 Head/Shell or Shell/Shell Overlay Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42RD-1176.1 Design of Full‐Face Nozzle Flanges . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44RD-1176.2 Values of V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46RD-1176.3 Values of F . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47RD-1176.4 Values of f . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48RD-1176.5 Values of T , Z , Y , and U . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49RD-1220.1 Moment Resultants . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55RD-1220.2 In‐Plane Force Resultants . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55RD-1220.3 Coordinate Systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56RD-1250.1 Geometry of an N ‐Layered Laminate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58RF-210.1 Fiber Side Wall Lay‐Up for Bag Molding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60RF-210.2 Head or End Preform for Cylindrical Vessel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61

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RF-610.1 Fiber Preform and Insert for Head for Centrifugally Cast Vessel . . . . . . . . . . . . . . . . . . . . . . 67RF-610.2 Fiber Head or End Preformed Inserts for Centrifugally Cast Vessel Heads . . . . . . . . . . . . . . 68RS-100.1 Official Certification Mark to Denote the American Society of Mechanical Engineers’

Standard . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 102RS-132.1 Form of Stamping and Marking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1032-100.1 Constant C for Gas or Vapor Related to Ratio of Specific Heats . . . . . . . . . . . . . . . . . . . . . . . 1092-100.1M Constant C for Gas or Vapor Related to Ratio of Specific Heats . . . . . . . . . . . . . . . . . . . . . . . 1098-700.5.11.1-1 Pendulum Impact Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14110-201-1 General Arrangement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15210-201-2 Laminate Termination . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15210-201-3 Laminate Step . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 153AA-522.1 Saddle‐Type Supports . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 169AA-523.1 Ring or Flange Support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 169AA-524.1 Metal Attachment in Vessel End . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 170AA-524.2 Metal Attachments in Thickened Ends . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 170AC-100.1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 173AC-100.2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 173AC-100.3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 174AC-100.4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 175AC-100.5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 175AC-200 Symbols and Sign Convention . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 179AC-310 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 184AC-410 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 187AC-421 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 188AC-422 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 188AC-430 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 188AC-431 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 189AD-201 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 192AD-202 Reference Coordinates . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 192AD-500 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 193AD-503 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 197AD-505 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 197AD-510 Failure Envelopes — Example Laminate in Strain Space . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 203AG-1 Sample Certificate of Authorization . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 210Q-115.1 Schematic Views of Permissible Joint Designs for Adhesive‐Bonded Cylinder Joints for

Tensile Tests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 228

TABLES1.1 Referenced Standards in This Section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xliRM-120.1 Resin Systems Required Certification by Resin Manufacturer . . . . . . . . . . . . . . . . . . . . . . . . . . . 9RM-120.2 Resin Systems Required Test by Vessel Fabricator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9RD-620.1 Flange and Nozzle Dimensions for Hand Lay‐Up and Pressure-Molded Flanges . . . . . . . . . . . 21RD-1173.2 Values of Spherical Radius Factor Ko for Ellipsoidal Heads With Pressure on Convex Side . . 37RT-620.1 Evaluation Criteria . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 922-100.1 Molecular Weights of Gases and Vapors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1106-100.1 Structural Laminate Visual Acceptance Criteria for Class I Pressure Vessels . . . . . . . . . . . . . . 1226-100.2 Structural Laminate Visual Acceptance Criteria for Class II Pressure Vessels . . . . . . . . . . . . . . 1247-100.1 Standard Units for Use in Equations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1268-300.4.1-1 Resin Systems: Required Certifications and Tests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1298-600.2.1-1 Visual Acceptance Criteria for FRP Laminate (U.S. Customary Units) . . . . . . . . . . . . . . . . . . . . 1328-600.2.1-2 Visual Acceptance Criteria for FRP Laminate (SI Units) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1338-700.2.1-1 Qualification Tests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1388-900.3-1 Guide for Completing Fabricator’s Data Report CPV-1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14510-305.1-1 Resin Supplier Certifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15410-305.1-2 Tests by Laminate Manufacturer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15410-307-1 Pre-Preg Supplier Certifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 155

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10-307-2 Pre-Preg Systems Tests by CRPV Manufacturer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15510-503-1 Visual Acceptance Criteria for FRP Laminate (U.S. Customary Units) . . . . . . . . . . . . . . . . . . . . 15910-503-1M Visual Acceptance Criteria for FRP Laminate (SI Units) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16010-503-2 Acoustic Emission Evaluation Criteria . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 161AC-440.1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 190AD-500 Assumed Lamina Elastic and Strength Properties . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 193AD-501 Transformed Modulus Components, 106 psi . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 195AD-506 Matrices for Illustrative Example . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 198AD-507.2 Off‐Axis Mechanical Strain . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 200AD-507.3 On‐Axis Mechanical Strain . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 200AD-510 Strain‐Space Envelope Coordinates . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 204AG-1 Guide to Information Appearing on Certificate of Authorization (See Figure AG-1) . . . . . . . . . 209AJ-1 Latest Revision and Year Date of Forms Referenced in This Code . . . . . . . . . . . . . . . . . . . . . . . 218AJ-2 Guide for Completing Form RP-1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 242AJ-3 Guide for Completing Form RP-2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 245AJ-4 Guide for Completing Form RP-3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 248AJ-5 Guide for Completing Form RP-4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 251AJ-6 Guide for Completing Form RP-5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 253

FORMSCPV-1 Fabricator’s Data Report for Composite Reinforced Pressure Vessels (Class III) . . . . . . . . . . . . . . . . 143CPV-2 Recommended Form for Qualifying the Laminate Design and the Laminate Procedure Specification

Used in the Fabrication of Composite Reinforced Pressure Vessels (Class III) . . . . . . . . . . . . . . . . 146Q-106 Recommended Form for Qualifying the Vessel Design and the Procedure Specification Used in

Fabricating Bag-Molded and Centrifugally Cast Fiber-Reinforced Plastic Pressure Vessels (Class I) 219Q-107 Recommended Form for Qualifying the Vessel Design and the Procedure Specification Used in

Fabricating Filament-Wound Fiber-Reinforced Plastic Pressure Vessels (Class I) . . . . . . . . . . . . . 221Q-108 Recommended Form for Qualifying the Vessel Design and the Procedure Specification Used in

Fabricating Contact-Molded, Fiber-Reinforced Plastic Pressure Vessels (Class I) . . . . . . . . . . . . . . 223Q-115 Recommended Form for Qualifying the Design and the Procedure Specification Used in Adhesive

Bonding of Parts of Fiber-Reinforced Plastic Pressure Vessels (Class I) . . . . . . . . . . . . . . . . . . . . . 226Q-120 Procedure Specification for Class II Vessels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 230RP-1 Fabricator’s Data Report for Fiber-Reinforced Plastic Pressure Vessels (Class I) . . . . . . . . . . . . . . . . 240RP-2 Fabricator’s Partial Data Report (Class I) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 243RP-3 Fabricator’s Data Report for Class II Vessels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 246RP-4 Fabricator’s Partial Data Report for Class II Vessels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 249RP-5 Fabricator’s Data Report Supplementary Sheet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 252

ENDNOTES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 265

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ð17ÞLIST OF SECTIONSSECTIONSI Rules for Construction of Power Boilers

II Materials• Part A — Ferrous Material Specifications• Part B — Nonferrous Material Specifications• Part C — Specifications for Welding Rods, Electrodes, and Filler Metals• Part D — Properties (Customary)• Part D — Properties (Metric)

III Rules for Construction of Nuclear Facility Components• Subsection NCA — General Requirements for Division 1 and Division 2• Appendices• Division 1*

– Subsection NB — Class 1 Components– Subsection NC — Class 2 Components– Subsection ND — Class 3 Components– Subsection NE — Class MC Components– Subsection NF — Supports– Subsection NG — Core Support Structures

• Division 2 — Code for Concrete Containments• Division 3 — Containment Systems for Transportation and Storage of Spent Nuclear Fuel and High-LevelRadioactive Material

• Division 5 — High Temperature Reactors

IV Rules for Construction of Heating Boilers

V Nondestructive Examination

VI Recommended Rules for the Care and Operation of Heating Boilers

VII Recommended Guidelines for the Care of Power Boilers

VIII Rules for Construction of Pressure Vessels• Division 1• Division 2 — Alternative Rules• Division 3 — Alternative Rules for Construction of High Pressure Vessels

IX Welding, Brazing, and Fusing Qualifications

X Fiber-Reinforced Plastic Pressure Vessels

XI Rules for Inservice Inspection of Nuclear Power Plant Components

XII Rules for Construction and Continued Service of Transport Tanks

* The 2015 Edition of Section III was the last edition in which Section III, Division 1, Subsection NH, Class 1 Components in Elevated Tem-perature Service, was published. The requirements located within Subsection NH were moved to Section III, Division 5, Subsection HB, SubpartB for the elevated temperature construction of Class A components.

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INTERPRETATIONS

Interpretations are issued in real time in ASME’s Interpretations Database at http://go.asme.org/Interpretations. His-torical BPVC interpretations may also be found in the Database.

CODE CASES

The Boiler and Pressure Vessel Code committees meet regularly to consider proposed additions and revisions to theCode and to formulate Cases to clarify the intent of existing requirements or provide, when the need is urgent, rules formaterials or constructions not covered by existing Code rules. Those Cases that have been adopted will appear in theappropriate 2017 Code Cases book: “Boilers and Pressure Vessels” or “Nuclear Components.” Supplements will be sentor made available automatically to the purchasers of the Code Cases books up to the publication of the 2019 Code.

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FOREWORD*

In 1911, The American Society of Mechanical Engineers established the Boiler and Pressure Vessel Committee to for-mulate standard rules for the construction of steam boilers and other pressure vessels. In 2009, the Boiler and PressureVessel Committee was superseded by the following committees:

(a) Committee on Power Boilers (I)(b) Committee on Materials (II)(c) Committee on Construction of Nuclear Facility Components (III)(d) Committee on Heating Boilers (IV)(e) Committee on Nondestructive Examination (V)(f) Committee on Pressure Vessels (VIII)(g) Committee on Welding, Brazing, and Fusing (IX)(h) Committee on Fiber-Reinforced Plastic Pressure Vessels (X)(i) Committee on Nuclear Inservice Inspection (XI)(j) Committee on Transport Tanks (XII)(k) Technical Oversight Management Committee (TOMC)Where reference is made to “the Committee” in this Foreword, each of these committees is included individually and

collectively.The Committee’s function is to establish rules of safety relating only to pressure integrity, which govern the

construction** of boilers, pressure vessels, transport tanks, and nuclear components, and the inservice inspection of nu-clear components and transport tanks. The Committee also interprets these rules when questions arise regarding theirintent. The technical consistency of the Sections of the Code and coordination of standards development activities of theCommittees is supported and guided by the Technical Oversight Management Committee. This Code does not addressother safety issues relating to the construction of boilers, pressure vessels, transport tanks, or nuclear components, orthe inservice inspection of nuclear components or transport tanks. Users of the Code should refer to the pertinent codes,standards, laws, regulations, or other relevant documents for safety issues other than those relating to pressure integ-rity. Except for Sections XI and XII, and with a few other exceptions, the rules do not, of practical necessity, reflect thelikelihood and consequences of deterioration in service related to specific service fluids or external operating environ-ments. In formulating the rules, the Committee considers the needs of users, manufacturers, and inspectors of pressurevessels. The objective of the rules is to afford reasonably certain protection of life and property, and to provide a marginfor deterioration in service to give a reasonably long, safe period of usefulness. Advancements in design and materialsand evidence of experience have been recognized.

This Code contains mandatory requirements, specific prohibitions, and nonmandatory guidance for construction ac-tivities and inservice inspection and testing activities. The Code does not address all aspects of these activities and thoseaspects that are not specifically addressed should not be considered prohibited. The Code is not a handbook and cannotreplace education, experience, and the use of engineering judgment. The phrase engineering judgment refers to technicaljudgments made by knowledgeable engineers experienced in the application of the Code. Engineering judgments mustbe consistent with Code philosophy, and such judgments must never be used to overrule mandatory requirements orspecific prohibitions of the Code.

The Committee recognizes that tools and techniques used for design and analysis change as technology progressesand expects engineers to use good judgment in the application of these tools. The designer is responsible for complyingwith Code rules and demonstrating compliance with Code equations when such equations are mandatory. The Codeneither requires nor prohibits the use of computers for the design or analysis of components constructed to the

* The information contained in this Foreword is not part of this American National Standard (ANS) and has not been processed in accordancewith ANSI's requirements for an ANS. Therefore, this Foreword may contain material that has not been subjected to public review or a con-sensus process. In addition, it does not contain requirements necessary for conformance to the Code.

** Construction, as used in this Foreword, is an all-inclusive term comprising materials, design, fabrication, examination, inspection, testing,certification, and pressure relief.

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requirements of the Code. However, designers and engineers using computer programs for design or analysis are cau-tioned that they are responsible for all technical assumptions inherent in the programs they use and the application ofthese programs to their design.The rules established by the Committee are not to be interpreted as approving, recommending, or endorsing any pro-

prietary or specific design, or as limiting in any way the manufacturer’s freedom to choose any method of design or anyform of construction that conforms to the Code rules.The Committee meets regularly to consider revisions of the rules, new rules as dictated by technological development,

Code Cases, and requests for interpretations. Only the Committee has the authority to provide official interpretations ofthis Code. Requests for revisions, new rules, Code Cases, or interpretations shall be addressed to the Secretary in writingand shall give full particulars in order to receive consideration and action (see Submittal of Technical Inquiries to theBoiler and Pressure Vessel Standards Committees). Proposed revisions to the Code resulting from inquiries will be pre-sented to the Committee for appropriate action. The action of the Committee becomes effective only after confirmationby ballot of the Committee and approval by ASME. Proposed revisions to the Code approved by the Committee are sub-mitted to the American National Standards Institute (ANSI) and published at http://go.asme.org/BPVCPublicReview toinvite comments from all interested persons. After public review and final approval by ASME, revisions are published atregular intervals in Editions of the Code.The Committee does not rule on whether a component shall or shall not be constructed to the provisions of the Code.

The scope of each Section has been established to identify the components and parameters considered by the Committeein formulating the Code rules.Questions or issues regarding compliance of a specific component with the Code rules are to be directed to the ASME

Certificate Holder (Manufacturer). Inquiries concerning the interpretation of the Code are to be directed to the Commit-tee. ASME is to be notified should questions arise concerning improper use of an ASME Certification Mark.When required by context in this Section, the singular shall be interpreted as the plural, and vice versa, and the fem-

inine, masculine, or neuter gender shall be treated as such other gender as appropriate.

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STATEMENT OF POLICY ON THE USE OF THE CERTIFICATIONMARK AND CODE AUTHORIZATION IN ADVERTISING

ASME has established procedures to authorize qualified organizations to perform various activities in accordancewith the requirements of the ASME Boiler and Pressure Vessel Code. It is the aim of the Society to provide recognitionof organizations so authorized. An organization holding authorization to perform various activities in accordance withthe requirements of the Code may state this capability in its advertising literature.

Organizations that are authorized to use the Certification Mark for marking items or constructions that have beenconstructed and inspected in compliance with the ASME Boiler and Pressure Vessel Code are issued Certificates ofAuthorization. It is the aim of the Society to maintain the standing of the Certification Mark for the benefit of the users,the enforcement jurisdictions, and the holders of the Certification Mark who comply with all requirements.

Based on these objectives, the following policy has been established on the usage in advertising of facsimiles of theCertification Mark, Certificates of Authorization, and reference to Code construction. The American Society of MechanicalEngineers does not “approve,” “certify,” “rate,” or “endorse” any item, construction, or activity and there shall be no state-ments or implications that might so indicate. An organization holding the Certification Mark and/or a Certificate ofAuthorization may state in advertising literature that items, constructions, or activities “are built (produced or per-formed) or activities conducted in accordance with the requirements of the ASME Boiler and Pressure Vessel Code,”or “meet the requirements of the ASME Boiler and Pressure Vessel Code.”An ASME corporate logo shall not be usedby any organization other than ASME.

The Certification Mark shall be used only for stamping and nameplates as specifically provided in the Code. However,facsimiles may be used for the purpose of fostering the use of such construction. Such usage may be by an association ora society, or by a holder of the Certification Mark who may also use the facsimile in advertising to show that clearly spe-cified items will carry the Certification Mark. General usage is permitted only when all of a manufacturer’s items areconstructed under the rules.

STATEMENT OF POLICY ON THE USE OF ASME MARKING TOIDENTIFY MANUFACTURED ITEMS

The ASME Boiler and Pressure Vessel Code provides rules for the construction of boilers, pressure vessels, and nuclearcomponents. This includes requirements for materials, design, fabrication, examination, inspection, and stamping. Itemsconstructed in accordance with all of the applicable rules of the Code are identified with the official Certification Markdescribed in the governing Section of the Code.

Markings such as “ASME,” “ASME Standard,” or any other marking including “ASME” or the Certification Mark shall notbe used on any item that is not constructed in accordance with all of the applicable requirements of the Code.

Items shall not be described on ASME Data Report Forms nor on similar forms referring to ASME that tend to implythat all Code requirements have been met when, in fact, they have not been. Data Report Forms covering items not fullycomplying with ASME requirements should not refer to ASME or they should clearly identify all exceptions to the ASMErequirements.

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ð17Þ SUBMITTAL OF TECHNICAL INQUIRIES TO THE BOILER ANDPRESSURE VESSEL STANDARDS COMMITTEES

1 INTRODUCTION

(a) The following information provides guidance to Code users for submitting technical inquiries to the applicableBoiler and Pressure Vessel (BPV) Standards Committee (hereinafter referred to as the Committee). See the guidelineson approval of new materials under the ASME Boiler and Pressure Vessel Code in Section II, Part D for requirements forrequests that involve adding new materials to the Code. See the guidelines on approval of new welding and brazing ma-terials in Section II, Part C for requirements for requests that involve adding new welding and brazing materials (“con-sumables”) to the Code.Technical inquiries can include requests for revisions or additions to the Code requirements, requests for Code Cases,

or requests for Code Interpretations, as described below:(1) Code Revisions. Code revisions are considered to accommodate technological developments, to address admin-

istrative requirements, to incorporate Code Cases, or to clarify Code intent.(2) Code Cases. Code Cases represent alternatives or additions to existing Code requirements. Code Cases are writ-

ten as a Question and Reply, and are usually intended to be incorporated into the Code at a later date. When used, CodeCases prescribe mandatory requirements in the same sense as the text of the Code. However, users are cautioned thatnot all regulators, jurisdictions, or Owners automatically accept Code Cases. The most common applications for CodeCases are as follows:

(-a) to permit early implementation of an approved Code revision based on an urgent need(-b) to permit use of a new material for Code construction(-c) to gain experience with new materials or alternative requirements prior to incorporation directly into the

Code(3) Code Interpretations(-a) Code Interpretations provide clarification of the meaning of existing requirements in the Code and are pre-

sented in Inquiry and Reply format. Interpretations do not introduce new requirements.(-b) If existing Code text does not fully convey the meaning that was intended, or conveys conflicting require-

ments, and revision of the requirements is required to support the Interpretation, an Intent Interpretation will be issuedin parallel with a revision to the Code.(b) Code requirements, Code Cases, and Code Interpretations established by the Committee are not to be considered

as approving, recommending, certifying, or endorsing any proprietary or specific design, or as limiting in any way thefreedom of manufacturers, constructors, or Owners to choose any method of design or any form of construction thatconforms to the Code requirements.(c) Inquiries that do not comply with the following guidance or that do not provide sufficient information for the Com-

mittee’s full understanding may result in the request being returned to the Inquirer with no action.

2 INQUIRY FORMAT

Submittals to the Committee should include the following information:(a) Purpose. Specify one of the following:

(1) request for revision of present Code requirements(2) request for new or additional Code requirements(3) request for Code Case(4) request for Code Interpretation

(b) Background. The Inquirer should provide the information needed for the Committee’s understanding of the In-quiry, being sure to include reference to the applicable Code Section, Division, Edition, Addenda (if applicable), para-graphs, figures, and tables. Preferably, the Inquirer should provide a copy of, or relevant extracts from, the specificreferenced portions of the Code.

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(c) Presentations. The Inquirer may desire to attend or be asked to attend a meeting of the Committee to make a for-mal presentation or to answer questions from the Committee members with regard to the Inquiry. Attendance at a BPVStandards Committee meeting shall be at the expense of the Inquirer. The Inquirer’s attendance or lack of attendance ata meeting will not be used by the Committee as a basis for acceptance or rejection of the Inquiry by the Committee. How-ever, if the Inquirer’s request is unclear, attendance by the Inquirer or a representative may be necessary for the Com-mittee to understand the request sufficiently to be able to provide an Interpretation. If the Inquirer desires to make apresentation at a Committee meeting, the Inquirer should provide advance notice to the Committee Secretary, to ensuretime will be allotted for the presentation in the meeting agenda. The Inquirer should consider the need for additionalaudiovisual equipment that might not otherwise be provided by the Committee. With sufficient advance notice to theCommittee Secretary, such equipment may be made available.

3 CODE REVISIONS OR ADDITIONS

Requests for Code revisions or additions should include the following information:(a) Requested Revisions or Additions. For requested revisions, the Inquirer should identify those requirements of the

Code that they believe should be revised, and should submit a copy of, or relevant extracts from, the appropriate require-ments as they appear in the Code, marked up with the requested revision. For requested additions to the Code, the In-quirer should provide the recommended wording and should clearly indicate where they believe the additions should belocated in the Code requirements.

(b) Statement of Need. The Inquirer should provide a brief explanation of the need for the revision or addition.(c) Background Information. The Inquirer should provide background information to support the revision or addition,

including any data or changes in technology that form the basis for the request, that will allow the Committee to ade-quately evaluate the requested revision or addition. Sketches, tables, figures, and graphs should be submitted, as appro-priate. The Inquirer should identify any pertinent portions of the Code that would be affected by the revision or additionand any portions of the Code that reference the requested revised or added paragraphs.

4 CODE CASES

Requests for Code Cases should be accompanied by a statement of need and background information similar to thatdescribed in 3(b) and 3(c), respectively, for Code revisions or additions. The urgency of the Code Case (e.g., project un-derway or imminent, new procedure) should be described. In addition, it is important that the request is in connectionwith equipment that will bear the Certification Mark, with the exception of Section XI applications. The proposed CodeCase should identify the Code Section and Division, and should be written as a Question and a Reply, in the same formatas existing Code Cases. Requests for Code Cases should also indicate the applicable Code Editions and Addenda (if ap-plicable) to which the requested Code Case applies.

5 CODE INTERPRETATIONS

(a) Requests for Code Interpretations should be accompanied by the following information:(1) Inquiry. The Inquirer should propose a condensed and precise Inquiry, omitting superfluous background infor-

mation and, when possible, composing the Inquiry in such a way that a “yes” or a “no” Reply, with brief limitations orconditions, if needed, can be provided by the Committee. The proposed question should be technically and editoriallycorrect.

(2) Reply. The Inquirer should propose a Reply that clearly and concisely answers the proposed Inquiry question.Preferably, the Reply should be “yes” or “no,” with brief limitations or conditions, if needed.

(3) Background Information. The Inquirer should provide any need or background information, such as described in3(b) and 3(c), respectively, for Code revisions or additions, that will assist the Committee in understanding the proposedInquiry and Reply.

If the Inquirer believes a revision of the Code requirements would be helpful to support the Interpretation, the In-quirer may propose such a revision for consideration by the Committee. In most cases, such a proposal is not necessary.

(b) Requests for Code Interpretations should be limited to an Interpretation of a particular requirement in the Code orin a Code Case. Except with regard to interpreting a specific Code requirement, the Committee is not permitted to con-sider consulting-type requests such as the following:

(1) a review of calculations, design drawings, welding qualifications, or descriptions of equipment or parts to de-termine compliance with Code requirements

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(2) a request for assistance in performing any Code-prescribed functions relating to, but not limited to, materialselection, designs, calculations, fabrication, inspection, pressure testing, or installation

(3) a request seeking the rationale for Code requirements

6 SUBMITTALS

(a) Submittal. Requests for Code Interpretation should preferably be submitted through the online Interpretation Sub-mittal Form. The form is accessible at http://go.asme.org/InterpretationRequest. Upon submittal of the form, the In-quirer will receive an automatic e-mail confirming receipt. If the Inquirer is unable to use the online form, theInquirer may mail the request to the following address:

SecretaryASME Boiler and Pressure Vessel CommitteeTwo Park AvenueNew York, NY 10016-5990

All other Inquiries should be mailed to the Secretary of the BPV Committee at the address above. Inquiries are unlikelyto receive a response if they are not written in clear, legible English. They must also include the name of the Inquirer andthe company they represent or are employed by, if applicable, and the Inquirer’s address, telephone number, fax num-ber, and e-mail address, if available.(b) Response. The Secretary of the appropriate Committee will provide a written response, via letter or e-mail, as ap-

propriate, to the Inquirer, upon completion of the requested action by the Committee. Inquirers may track the status oftheir Interpretation Request at http://go.asme.org/Interpretations.

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ð17ÞPERSONNELASME Boiler and Pressure Vessel Standards Committees,

Subgroups, and Working GroupsJanuary 1, 2017

TECHNICAL OVERSIGHT MANAGEMENT COMMITTEE (TOMC)

T. P. Pastor, ChairS. C. Roberts, Vice ChairJ. S. Brzuszkiewicz, Staff SecretaryR. W. BarnesR. J. BasileT. L. BedeauxD. L. BergerD. A. CanonicoA. ChaudouetD. B. DeMichaelR. P. DeublerP. D. EdwardsJ. G. FeldsteinR. E. GimpleT. E. HansenG. W. Hembree

J. F. HenryR. S. Hill IIIG. G. KarcherW. M. LundyG. C. ParkM. D. RanaR. F. Reedy, Sr.B. W. RobertsF. J. Schaaf, Jr.B. F. ShelleyW. J. SperkoD. SrnicR. W. SwayneC. WithersJ. E. Batey, Contributing Member

HONORARY MEMBERS (MAIN COMMITTEE)

F. P. BartonT. M. CullenG. E. FeigelO. F. HeddenM. H. JawadA. J. Justin

W. G. KnechtJ. LeCoffT. G. McCartyG. C. MillmanR. A. MoenR. F. Reedy, Sr.

ADMINISTRATIVE COMMITTEE

T. P. Pastor, ChairS. C. Roberts, Vice ChairJ. S. Brzuszkiewicz, Staff SecretaryR. W. BarnesT. L. BedeauxD. L. BergerG. W. Hembree

J. F. Henry

R. S. Hill III

G. C. Park

M. D. Rana

B. F. Shelley

W. J. Sperko

MARINE CONFERENCE GROUP

H. N. Patel, ChairJ. S. Brzuszkiewicz, Staff SecretaryJ. G. Hungerbuhler, Jr.

G. PallichadathN. ProkopukJ. D. Reynolds

CONFERENCE COMMITTEE

D. A. Douin — Ohio, SecretaryM. J. Adams — Ontario, CanadaJ. T. Amato — MinnesotaW. Anderson — MississippiR. D. Austin — ArizonaR. J. Brockman — MissouriJ. H. Burpee — MaineM. Byrum — AlabamaC. B. Cantrell — NebraskaS. Chapman — TennesseeD. C. Cook — CaliforniaB. J. Crawford — GeorgiaE. L. Creaser — New Brunswick,Canada

J. J. Dacanay — HawaiiC. Dautrich — North CarolinaR. Delury — Manitoba, CanadaP. L. Dodge— Nova Scotia, CanadaD. Eastman — Newfoundland andLabrador, Canada

J. J. Esch — DelawareA. G. Frazier — FloridaT. J. Granneman II — OklahomaD. R. Hannon — ArkansasE. G. Hilton — VirginiaC. Jackson — City of Detroit,Michigan

M. L. Jordan — KentuckyE. Kawa, Jr. — MassachusettsA. Khssassi — Quebec, CanadaJ. Klug — City of Milwaukee,Wisconsin

K. J. Kraft — MarylandK. S. Lane — AlaskaL. C. Leet — City of Seattle,Washington

J. LeSage, Jr. — LouisianaA. M. Lorimor — South DakotaM. Mailman — NorthwestTerritories, Canada

D. E. Mallory — New HampshireW. McGivney — City of New York,New York

S. V. Nelson — ColoradoA. K. Oda — WashingtonM. Poehlmann — Alberta, CanadaJ. F. Porcella — West VirginiaC. F. Reyes — City of Los Angeles,California

M. J. Ryan — City of Chicago,Illinois

D. Sandfoss — NevadaM. H. Sansone — New YorkA. S. Scholl — British Columbia,Canada

T. S. Seime — North DakotaC. S. Selinger — Saskatchewan,Canada

J. E. Sharier — OhioN. Smith — PennsylvaniaR. Spiker — North CarolinaD. J. Stenrose — MichiganR. J. Stimson II — KansasR. K. Sturm — UtahS. R. Townsend — Prince EdwardIsland, Canada

R. D. Troutt — TexasM. C. Vogel — IllinoisT. Waldbillig — WisconsinM. Washington — New Jersey

INTERNATIONAL INTEREST REVIEW GROUP

V. FelixY.-G. KimS. H. LeongW. LinO. F. Manafa

C. MinuT. S. G. NarayannenY.-W. ParkA. R. R. NogalesP. Williamson

xxi

COMMITTEE ON POWER BOILERS (BPV I)

D. L. Berger, ChairR. E. McLaughlin, Vice ChairU. D’Urso, Staff SecretaryJ. L. ArnoldD. A. CanonicoK. K. ColemanP. D. EdwardsJ. G. FeldsteinG. W. GalanesT. E. HansenJ. F. HenryJ. S. HunterG. B. KomoraW. L. LowryF. MassiL. MoedingerP. A. Molvie

Y. OishiE. M. OrtmanJ. T. PillowM. SlaterJ. M. TanzoshD. E. TompkinsD. E. TuttleJ. VattappillyR. V. WielgoszinskiF. ZellerY. Li, DelegateH. Michael, DelegateB. W. Roberts, ContributingMember

D. N. French, Honorary MemberT. C. McGough, Honorary MemberR. L. Williams, Honorary Member

Subgroup on Design (BPV I)

J. Vattappilly, ChairD. I. Anderson, SecretaryD. DeweesH. A. Fonzi, Jr.J. P. GlaspieG. B. Komora

P. A. MolvieL. S. TsaiM. WadkinsonC. F. Jeerings, Contributing MemberS. V. Torkildson, ContributingMember

Subgroup on Fabrication and Examination (BPV I)

J. L. Arnold, ChairP. BeckerD. L. BergerS. FincherG. W. GalanesP. F. GilstonJ. Hainsworth

T. E. HansenC. T. McDarisR. E. McLaughlinR. J. NewellY. OishiJ. T. PillowR. V. Wielgoszinski

Subgroup on General Requirements and Piping (BPV I)

E. M. Ortman, ChairD. Tompkins, Vice ChairF. Massi, SecretaryP. BeckerD. L. BergerP. D. EdwardsG. W. GalanesT. E. HansenM. LemmonsW. L. Lowry

R. E. McLaughlinB. J. MollitorJ. T. PillowD. E. TuttleM. WadkinsonR. V. WielgoszinskiC. F. Jeerings, Contributing MemberS. V. Torkildson, ContributingMember

R. Uebel, Contributing Member

Subgroup on Locomotive Boilers (BPV I)

L. Moedinger, ChairS. M. Butler, SecretaryP. BoschanJ. R. BraunR. C. Franzen, Jr.G. W. GalanesD. W. Griner

S. D. Jackson

M. A. Janssen

S. A. Lee

G. M. Ray

R. B. Stone

M. W. Westland

Subgroup on Materials (BPV I)

G. W. Galanes, ChairJ. F. Henry, Vice ChairM. Lewis, SecretaryS. H. BowesD. A. CanonicoK. K. ColemanK. L. HayesJ. S. HunterO. X. Li

F. Masuyama

D. W. Rahoi

J. M. Tanzosh

J. Vattappilly

F. Zeller

M. Gold, Contributing Member

B. W. Roberts, ContributingMember

Subgroup on Solar Boilers (BPV I)

E. M. Ortman, ChairR. E. Hearne, SecretaryH. A. Fonzi, Jr.G. W. GalanesJ. S. Hunter

P. JenningsD. J. KozaF. MassiS. V. Torkildson, ContributingMember

Germany International Working Group (BPV I)

H. Michael, ChairH. P. Schmitz, SecretaryM. BremickerP. ChavdarovB. DaumeJ. FleischfresserE. HelmholdtR. KauerS. Krebs

T. LudwigR. A. MeyersF. MiunskeP. PaluszkiewiczH. SchroederA. SpangenbergM. SykoraJ. Henrichsmeyer, ContributingMember

India International Working Group (BPV I)

U. Revisanakaran, ChairA. J. Patil, Vice ChairH. Dalal, SecretaryK. AsokkumarM. R. KalahasthiI. KalyanasundaramA. R. Patil

G. V. S. Rao

M. G. Rao

N. Satheesan

G. U. Shanker

D. Shrivastava

S. Venkataramana

Task Group on Modernization of BPVC Section I

D. I. Anderson, ChairU. D’Urso, Staff SecretaryJ. L. ArnoldD. DeweesG. W. GalanesJ. P. GlaspieT. E. HansenJ. F. Henry

R. E. McLaughlin

P. A. Molvie

E. M. Ortman

J. T. Pillow

B. W. Roberts

D. E. Tuttle

J. Vattappilly

xxii

COMMITTEE ON MATERIALS (BPV II)

J. F. Henry, ChairJ. F. Grubb, Vice ChairC. E. O’Brien, Staff SecretaryF. AbeA. AppletonJ. CameronD. A. CanonicoA. ChaudouetD. B. DenisJ. R. FouldsD. W. GandyM. H. GilkeyJ. A. HallK. M. HottleM. IshikawaO. X. LiF. MasuyamaR. K. NanstadK. E. OrieD. W. RahoiE. ShapiroM. J. SlaterR. C. SutherlinR. W. Swindeman

J. M. TanzoshR. G. YoungF. ZellerO. Oldani, DelegateH. D. Bushfield, ContributingMember

M. Gold, Contributing MemberW. Hoffelner, Contributing MemberM. Katcher, Contributing MemberM. L. Nayyar, Contributing MemberE. G. Nisbett, Contributing MemberD. T. Peters, Contributing MemberB. W. Roberts, ContributingMember

E. Thomas, Contributing MemberE. Upitis, Contributing MemberT. M. Cullen, Honorary MemberW. D. Edsall, Honorary MemberG. C. Hsu, Honorary MemberR. A. Moen, Honorary MemberC. E. Spaeder, Jr., HonoraryMember

A. W. Zeuthen, Honorary Member

Executive Committee (BPV II)

J. F. Henry, ChairC. E. O’Brien, Staff SecretaryA. AppletonA. ChaudouetJ. R. FouldsM. Gold

J. F. GrubbR. W. MikitkaB. W. RobertsM. J. SlaterR. C. SutherlinR. W. Swindeman

Subgroup on External Pressure (BPV II)

R. W. Mikitka, ChairD. L. Kurle, Vice ChairJ. A. A. Morrow, SecretaryL. F. CampbellH. ChenD. S. GriffinJ. F. GrubbS. Guzey

J. R. Harris III

M. H. Jawad

C. R. Thomas

M. Wadkinson

M. Katcher, Contributing Member

C. H. Sturgeon, ContributingMember

Subgroup on Ferrous Specifications (BPV II)

A. Appleton, ChairK. M. Hottle, Vice ChairP. Wittenbach, SecretaryH. ChenB. M. DingmanM. J. DosdourianO. ElkadimJ. D. FritzM. GoldT. GrahamJ. M. GrockiJ. F. GrubbJ. Gundlach

C. HydeD. S. JanikowskiL. J. LavezziS. G. LeeW. C. MackA. S. MelilliK. E. OrieJ. ShickE. UpitisJ. D. WilsonR. ZawieruchaE. G. Nisbett, Contributing Member

Subgroup on International Material Specifications (BPV II)

A. Chaudouet, ChairA. R. Nywening, Vice ChairT. F. Miskell, SecretaryD. A. CanonicoH. ChenA. F. GarbolevskyD. O. Henry

M. IshikawaO. X. LiW. M. LundyE. UpitisF. ZellerO. Oldani, DelegateH. Lorenz, Contributing Member

Subgroup on Nonferrous Alloys (BPV II)

R. C. Sutherlin, ChairM. H. Gilkey, Vice ChairJ. CallandD. B. DenisJ. F. GrubbT. HartmanA. HeinoM. KatcherJ. A. McMasterL. Paul

D. W. Rahoi

W. Ren

J. Robertson

E. Shapiro

M. H. Skillingberg

J. Weritz

R. Wright

S. Yem

D. T. Peters, Contributing Member

Subgroup on Physical Properties (BPV II)

J. F. Grubb, ChairD. B. Denis, Vice ChairE. Shapiro

H. D. Bushfield, ContributingMember

Subgroup on Strength, Ferrous Alloys (BPV II)

M. J. Slater, ChairS. W. Knowles, SecretaryF. AbeD. A. CanonicoA. Di RienzoJ. R. FouldsJ. A. HallJ. F. HenryK. KimuraF. MasuyamaT. Ono

M. OrtolaniD. W. RahoiM. S. SheltonR. W. SwindemanJ. M. TanzoshR. G. YoungF. ZellerM. Gold, Contributing MemberM. Nair, Contributing MemberB. W. Roberts, ContributingMember

Subgroup on Strength of Weldments (BPV II & BPV IX)

W. F. Newell, Jr., ChairS. H. BowesK. K. ColemanM. DenaultP. D. FlennerJ. R. FouldsD. W. GandyM. GhahremaniK. L. Hayes

J. F. HenryE. LieblJ. PensoD. W. RahoiB. W. RobertsW. J. SperkoJ. P. Swezy, Jr.J. M. TanzoshM. Gold, Contributing Member

Working Group on Materials Database (BPV II)

R. W. Swindeman, ChairC. E. O’Brien, Staff SecretaryF. AbeJ. R. FouldsJ. F. HenryM. J. SlaterR. C. SutherlinD. Andrei, Contributing Member

J. L. Arnold, Contributing MemberJ. Grimes, Contributing MemberW. Hoffelner, Contributing MemberT. Lazar, Contributing MemberD. T. Peters, Contributing MemberW. Ren, Contributing MemberB. W. Roberts, ContributingMember

xxiii

Working Group on Creep Strength Enhanced Ferritic Steels (BPV II)

J. F. Henry, ChairJ. A. Siefert, SecretaryF. AbeS. H. BowesD. A. CanonicoK. K. ColemanP. D. FlennerJ. R. FouldsG. W. GalanesM. GoldF. MasuyamaT. Melfi

W. F. Newell, Jr.M. OrtolaniJ. ParkerW. J. SperkoR. W. SwindemanJ. M. TanzoshR. H. WorthingtonR. G. YoungF. ZellerG. Cumino, Contributing MemberB. W. Roberts, ContributingMember

Working Group on Data Analysis (BPV II)

J. F. Grubb, ChairF. AbeJ. R. FouldsM. GoldJ. F. HenryM. KatcherF. Masuyama

W. Ren

M. Subanovic

M. J. Swindeman

R. W. Swindeman

B. W. Roberts, ContributingMember

China International Working Group (BPV II)

B. Shou, ChairA. T. Xu, SecretaryW. FangQ. C. FengS. HuoF. KongH. LiJ. LiS. LiZ. RongcanS. TanC. WangJ. WangQ.-J. Wang

X. WangF. YangG. YangH.-C. YangR. YeL. YinD. ZhangH. ZhangX.-H. ZhangYingkai ZhangYong ZhangQ. ZhaoS. ZhaoJ. Zou

COMMITTEE ON CONSTRUCTION OF NUCLEAR FACILITYCOMPONENTS (BPV III)

R. S. Hill III, ChairR. B. Keating, Vice ChairJ. C. Minichiello, Vice ChairA. Byk, Staff SecretaryT. M. AdamsA. AppletonR. W. BarnesW. H. BorterC. W. BrunyT. D. BurchellR. P. DeublerA. C. EberhardtR. M. JesseeR. I. JetterC. C. KimG. H. KooV. KostarevK. A. ManolyD. E. MatthewsR. P. McIntyreM. N. Mitchell

M. MorishitaD. K. MortonT. NagataR. F. Reedy, Sr.I. SaitoS. ShamC. T. SmithW. K. Sowder, Jr.W. J. SperkoJ. P. TuckerK. R. WichmanC. S. WithersY. H. Choi, DelegateT. Ius, DelegateH.-T. Wang, DelegateM. Zhou, Contributing MemberE. B. Branch, Honorary MemberG. D. Cooper, Honorary MemberD. F. Landers, Honorary MemberR. A. Moen, Honorary MemberC. J. Pieper, Honorary Member

Executive Committee (BPV III)

R. S. Hill III, ChairA. Byk, Staff SecretaryT. M. AdamsC. W. BrunyP. R. DonavinR. M. JesseeR. B. KeatingR. P. McIntyre

J. C. Minichiello

M. Morishita

D. K. Morton

J. A. Munshi

C. A. Sanna

S. Sham

W. K. Sowder, Jr.

Subcommittee on Design (BPV III)

P. R. Donavin, ChairD. E. Matthews, Vice ChairG. L. Hollinger, SecretaryT. M. AdamsR. L. BrattonC. W. BrunyR. P. DeublerR. I. JetterC. JonkerR. B. KeatingK. A. ManolyR. J. Masterson

M. N. Mitchell

W. J. O’Donnell, Sr.E. L. Pleins

S. Sham

J. P. Tucker

W. F. Weitze

K. Wright

T. Yamazaki

J. Yang

R. S. Hill III, Contributing Member

M. H. Jawad, Contributing Member

Subgroup on Component Design (SC-D) (BPV III)

T. M. Adams, ChairR. B. Keating, Vice ChairS. Pellet, SecretaryG. A. AntakiS. AsadaJ. F. BallC. BasavarajuR. P. DeublerP. HirschbergO.-S. KimR. KleinH. KobayashiK. A. ManolyR. J. MastersonD. E. MatthewsJ. C. MinichielloD. K. Morton

T. M. MustoT. NagataA. N. NguyenE. L. PleinsI. SaitoG. C. SlagisJ. R. StinsonG. Z. TokarskiJ. P. TuckerP. VockC. WilsonJ. YangC. W. Bruny, Contributing MemberA. A. Dermenjian, ContributingMember

K. R. Wichman, Honorary Member

Working Group on Core Support Structures (SG-CD) (BPV III)

J. Yang, ChairJ. F. Kielb, SecretaryL. C. HartlessD. KeckT. LiszkaiH. S. Mehta

M. NakajimaM. D. SnyderA. TsirigotisR. VollmerR. Z. ZieglerJ. T. Land, Contributing Member

Working Group on Design of Division 3 Containment Systems(SG-CD) (BPV III)

D. K. Morton, ChairD. J. AmmermanG. BjorkmanV. BrozS. HorowitzD. W. LewisJ. C. Minichiello

E. L. Pleins

C. J. Temus

X. Zhai

I. D. McInnes, Contributing Member

H. P. Shrivastava, ContributingMember

xxiv

Working Group on HDPE Design of Components (SG-CD) (BPV III)

T. M. Musto, ChairJ. Ossmann, SecretaryT. M. AdamsT. A. BaconM. BrandesD. BurwellS. ChoiJ. R. Hebeisen

P. KrishnaswamyK. A. ManolyM. MartinJ. C. MinichielloD. P. MunsonF. J. Schaaf, Jr.R. StakenborghsH. E. Svetlik

Working Group on Piping (SG-CD) (BPV III)

G. A. Antaki, ChairG. Z. Tokarski, SecretaryT. M. AdamsT. A. BaconC. BasavarajuJ. CatalanoF. ClaeysC. M. FaidyR. G. GiladaN. M. GrahamM. A. GrayR. J. GurdalR. W. HauptA. HiranoP. HirschbergM. KassarJ. Kawahata

R. B. KeatingV. KostarevD. LiebT. B. LittletonY. LiuJ. F. McCabeJ. C. MinichielloI.-K. NamM. S. SillsG. C. SlagisN. C. SutherlandC.-I. WuA. N. Nguyen, Contributing MemberN. J. Shah, Contributing MemberE. A. Wais, Contributing MemberE. C. Rodabaugh, HonoraryMember

Working Group on Pressure Relief (SG-CD) (BPV III)

J. F. Ball, ChairK. R. MayD. Miller

A. L. SzeglinD. G. ThibaultI. H. Tseng

Working Group on Pumps (SG-CD) (BPV III)

R. Klein, ChairD. Chowdhury, SecretaryP. W. BehnkeR. E. Cornman, Jr.X. DiM. D. EftychiouA. FraserC. GabhartR. Ghanbari

M. Higuchi

R. Ladefian

W. Lienau

K. J. Noel

R. A. Patrick

J. Sulley

R. Udo

A. G. Washburn

Working Group on Supports (SG-CD) (BPV III)

J. R. Stinson, ChairU. S. Bandyopadhyay, SecretaryK. AvrithiT. H. BakerF. J. BirchR. P. DeublerN. M. GrahamR. J. Masterson

S. Pellet

I. Saito

H. P. Srivastava

C. Stirzel

G. Z. Tokarski

P. Wiseman

C.-I. Wu

Working Group on Valves (SG-CD) (BPV III)

P. Vock, ChairS. Jones, SecretaryM. C. BuckleyR. FarrellG. A. JollyJ. KleinT. Lippucci

C. A. MizerJ. O’CallaghanH. O’BrienK. E. Reid IIJ. SulleyI. H. TsengJ. P. Tucker

Working Group on Vessels (SG-CD) (BPV III)

D. E. Matthews, ChairC. Wilson, SecretaryC. BasavarajuJ. V. Gregg, Jr.M. KassarR. B. KeatingD. KeckJ. KimO.-S. KimT. MitsuhashiM. Nair

T. J. Schriefer

M. C. Scott

P. K. Shah

J. Shupert

C. Turylo

D. Vlaicu

W. F. Weitze

T. Yamazaki

R. Z. Ziegler

A. Kalnins, Contributing Member

Subgroup on Design Methods (SC-D) (BPV III)

C. W. Bruny, ChairS. McKillop, SecretaryK. AvrithiW. CulpP. R. DonavinJ. V. Gregg, Jr.H. T. Harrison IIIK. HsuC. JonkerM. Kassar

D. Keck

M. N. Mitchell

W. J. O’Donnell, Sr.P. J. O’ReganW. D. Reinhardt

P. Smith

S. D. Snow

W. F. Weitze

K. Wright

Working Group on Design Methodology (SG-DM) (BPV III)

S. D. Snow, ChairC. F. Heberling II, SecretaryK. AvrithiC. BasavarajuD. L. CaldwellD. DeweesC. M. FaidyR. FarrellH. T. Harrison IIIP. HirschbergM. KassarR. B. KeatingJ. KimH. KobayashiT. Liszkai

J. F. McCabeS. McKillopS. RanganathW. D. ReinhardtD. H. RoartyP. K. ShahR. VollmerS. WangW. F. WeitzeJ. WenT. M. WigerK. WrightJ. YangR. D. Blevins, Contributing MemberM. R. Breach, Contributing Member

Working Group on Environmental Effects (SG-DM) (BPV III)

C. Jonker, ChairB. D. Frew, SecretaryW. CulpP. J. Dobson

J. KimJ. E. NestellM. OsterfossT. J. Schriefer

xxv

Working Group on Environmental Fatigue Evaluation Methods(SG-DM) (BPV III)

K. Wright, ChairM. A. Gray, Vice ChairW. F. Weitze, SecretaryT. M. AdamsS. AsadaK. AvrithiR. C. CipollaT. M. DamianiC. M. FaidyT. D. Gilman

S. R. GosselinY. HeP. HirschbergH. S. MehtaT. MetaisJ.-S. ParkD. H. RoartyI. SaitoD. VlaicuR. Z. Ziegler

Working Group on Fatigue Strength (SG-DM) (BPV III)

P. R. Donavin, ChairM. S. Shelton, SecretaryT. M. DamianiD. DeweesC. M. FaidyS. R. GosselinR. J. GurdalC. F. Heberling IIC. E. HinnantP. HirschbergK. Hsu

S. H. Kleinsmith

S. Majumdar

S. N. Malik

S. Mohanty

D. H. Roarty

A. Tsirigotis

K. Wright

H. H. Ziada

W. J. O'Donnell, Sr., ContributingMember

Working Group on Graphite and Composites Design(SG-DM) (BPV III)

M. N. Mitchell, ChairM. W. Davies, Vice ChairT. D. Burchell, SecretaryA. AppletonS. R. CadellS.-H. ChiW. J. Geringer

S. T. GonczyM. G. JenkinsY. KatohJ. OssmannM. RoemmlerS. YuG. L. Zeng

Working Group on Probabilistic Methods in Design(SG-DM) (BPV III)

M. Golliet, ChairT. AsayamaK. AvrithiD. O. HenryR. S. Hill III

M. MorishitaP. J. O'ReganN. A. PalmI. Saito

Special Working Group on Computational Modeling for ExplicitDynamics (SG-DM) (BPV III)

G. Bjorkman, ChairD. J. Ammerman, Vice ChairV. Broz, SecretaryM. R. BreachJ. M. JordanS. KuehnerD. Molitoris

W. D. Reinhardt

P. Y.-K. Shih

S. D. Snow

C.-F. Tso

M. C. Yaksh

U. Zencker

Subgroup on Elevated Temperature Design (SC-D) (BPV III)

S. Sham, ChairT. AsayamaC. Becht IVF. W. BrustP. CarterB. F. HantzA. B. HullM. H. JawadR. I. Jetter

G. H. KooS. MajumdarJ. E. NestellW. J. O'Donnell, Sr.R. W. SwindemanD. S. Griffin, Contributing MemberW. J. Koves, Contributing MemberD. L. Marriott, ContributingMember

Working Group on Allowable Stress Criteria (SG-ETD) (BPV III)

R. W. Swindeman, ChairR. Wright, SecretaryJ. R. FouldsC. J. JohnsK. KimuraT. LeM. Li

D. MaitraS. N. MalikJ. E. NestellW. RenB. W. RobertsM. SenguptaS. Sham

Working Group on Analysis Methods (SG-ETD) (BPV III)

P. Carter, ChairM. J. Swindeman, SecretaryM. R. BreachM. E. CohenR. I. Jetter

T. KrishnamurthyT. LeS. ShamD. K. Williams

Working Group on Creep-Fatigue and Negligible Creep (SG-ETD)(BPV III)

T. Asayama, ChairF. W. BrustP. CarterR. I. JetterG. H. Koo

T. LeB.-L. LyowS. N. MalikH. QianS. Sham

Working Group on Elevated Temperature Construction (SG-ETD)(BPV III)

M. H. Jawad, ChairA. Mann, SecretaryD. I. AndersonR. G. BrownD. DeweesB. F. HantzR. I. JetterS. KrishnamurthyT. Le

M. N. Mitchell

B. J. Mollitor

C. Nadarajah

P. Prueter

M. J. Swindeman

J. P. Glaspie, Contributing Member

D. L. Marriott, ContributingMember

Working Group on High Temperature Flaw Evaluation (SG-ETD)(BPV III)

F. W. Brust, ChairN. BroomP. CarterT. LeS. N. Malik

H. QianD. L. RudlandP. J. RushD.-J. ShimS. X. Xu

xxvi

Special Working Group on Inelastic Analysis Methods (SG-ETD)(BPV III)

S. Sham, ChairS. X. Xu, SecretaryR. W. BarnesJ. A. BlancoB. R. Ganta

T. HassanG. H. KooB.-L. LyowM. J. SwindemanG. L. Zeng

Subgroup on General Requirements (BPV III)

R. P. McIntyre, ChairL. M. Plante, SecretaryV. ApostolescuA. AppletonS. BellJ. R. BerryJ. DeKleineJ. V. GardinerJ. W. HighlandsE. V. ImbroK. A. KavanaghY.-S. Kim

E. C. RenaudJ. RogersD. J. RoszmanC. T. SmithW. K. Sowder, Jr.R. SpuhlG. E. SzabaturaD. M. VickeryC. S. WithersH. Michael, DelegateG. L. Hollinger, ContributingMember

Working Group on Duties and Responsibilities (SG-GR) (BPV III)

J. V. Gardiner, ChairG. L. Hollinger, SecretaryD. ArrigoS. BellJ. R. BerryP. J. CocoM. CusickJ. DeKleineN. DeSantis

Y. Diaz-Castillo

K. A. Kavanagh

J. M. Lyons

L. M. Plante

D. J. Roszman

B. S. Sandhu

E. M. Steuck

J. L. Williams

Working Group on Quality Assurance, Certification, and Stamping(SG-GR) (BPV III)

C. T. Smith, ChairC. S. Withers, SecretaryV. ApostolescuA. AppletonO. ElkadimS. M. GoodwinJ. GrimmJ. W. HighlandsY.-S. KimB. McGloneR. P. McIntyre

D. T. MeischR. B. PatelE. C. RenaudT. RezkJ. RogersW. K. Sowder, Jr.R. SpuhlJ. F. StrunkG. E. SzabaturaD. M. VickeryC. A. Spletter, Contributing Member

Special Working Group on General Requirements Consolidation(SG-GR) (BPV III)

J. V. Gardiner, ChairC. T. Smith, Vice ChairS. BellM. CusickY. Diaz-CastilloJ. GrimmJ. M. LyonsB. McGloneR. PatelE. C. RenaudT. Rezk

J. Rogers

D. J. Roszman

B. S. Sandhu

G. J. Solovey

R. Spuhl

G. E. Szabatura

J. L. Williams

C. S. Withers

S. F. Harrison, ContributingMember

Subgroup on Materials, Fabrication, and Examination (BPV III)

R. M. Jessee, ChairB. D. Frew, Vice ChairS. Hunter, SecretaryW. H. BorterT. D. BurchellG. R. CannellP. J. CocoM. W. DaviesR. H. DavisD. B. DenisG. B. GeorgievS. E. GingrichM. GollietJ. GrimmL. S. Harbison

J. Johnston, Jr.C. C. KimM. LashleyT. MelfiH. MurakamiJ. OssmannJ. E. O’SullivanM. C. ScottW. J. SperkoJ. R. StinsonJ. F. StrunkR. WrightS. YeeH. Michael, DelegateR. W. Barnes, Contributing Member

Working Group on Graphite and Composite Materials (SG-MFE)(BPV III)

T. D. Burchell, ChairM. W. Davies, Vice ChairM. N. Mitchell, SecretaryA. AppletonR. L. BrattonS. R. CadellS.-H. ChiA. CovacS. W. DomsS. F. Duffy

W. J. GeringerS. T. GonzcyM. G. JenkinsY. KatohJ. OssmannM. RoemmlerN. SalstromT. ShibataS. YuG. L. Zeng

Working Group on HDPE Materials (SG-MFE) (BPV III)

M. Golliet, ChairM. A. Martin, SecretaryW. H. BorterG. BrouetteM. C. BuckleyJ. HakiiJ. Johnston, Jr.P. Krishnaswamy

D. P. Munson

T. M. Musto

S. Patterson

S. Schuessler

R. Stakenborghs

M. Troughton

B. Hauger, Contributing Member

Joint ACI-ASME Committee on Concrete Components for NuclearService (BPV III)

J. A. Munshi, ChairJ. McLean, Vice ChairA. Byk, Staff SecretaryK. Verderber, Staff SecretaryC. J. BangL. J. ColarussoA. C. EberhardtF. FarzamP. S. GhosalB. D. HovisT. C. InmanC. JonesO. JovallN.-H. Lee

N. OrbovicC. T. SmithJ. F. StrunkT. TonyanS. WangT. J. Ahl, Contributing MemberJ. F. Artuso, Contributing MemberJ.-B. Domage, Contributing MemberJ. Gutierrez, Contributing MemberT. Kang, Contributing MemberT. Muraki, Contributing MemberB. B. Scott, Contributing MemberM. R. Senecal, ContributingMember

xxvii

Working Group on Design (BPV III-2)

N.-H. Lee, ChairM. AllamS. BaeL. J. ColarussoA. C. EberhardtF. FarzamP. S. GhosalB. D. HovisT. C. InmanC. JonesO. Jovall

J. A. MunshiT. MurakiS. WangM. Diaz, Contributing MemberS. Diaz, Contributing MemberA. Istar, Contributing MemberB. R. Laskewitz, ContributingMember

B. B. Scott, Contributing MemberZ. Shang, Contributing MemberM. Sircar, Contributing Member

Working Group on Materials, Fabrication, and Examination(BPV III-2)

P. S. Ghosal, ChairT. Tonyan, Vice ChairM. AllamC. J. BangJ.-B. DomageA. C. EberhardtC. JonesT. Kang

N. LeeC. T. SmithJ. F. StrunkD. UfukJ. F. Artuso, Contributing MemberJ. Gutierrez, Contributing MemberB. B. Scott, Contributing MemberZ. Shang, Contributing Member

Special Working Group on Modernization (BPV III-2)

J. McLean, ChairN. Orbovic, Vice ChairA. AdediranO. JovallC. T. SmithM. A. Ugalde

S. Wang

S. Diaz, Contributing Member

J.-B. Domage, Contributing Member

F. Lin, Contributing Member

N. Stoeva, Contributing Member

Subgroup on Containment Systems for Spent Nuclear Fuel andHigh-Level Radioactive Material (BPV III)

D. K. Morton, ChairD. J. Ammerman, Vice ChairG. R. Cannell, SecretaryG. BjorkmanV. BrozS. HorowitzD. W. LewisE. L. PleinsR. H. SmithG. J. Solovey

C. J. TemusW. H. Borter, Contributing MemberR. S. Hill III, Contributing MemberP. E. McConnell, ContributingMember

A. B. Meichler, ContributingMember

T. Saegusa, Contributing MemberN. M. Simpson, ContributingMember

Subgroup on Fusion Energy Devices (BPV III)

W. K. Sowder, Jr., ChairD. Andrei, Staff SecretaryD. J. Roszman, SecretaryL. C. CadwalladerB. R. DoshiM. HiguchiG. HoltmeierM. KalseyK. A. KavanaghK. KimI. KimihiroS. Lee

G. LiX. LiP. MokariaT. R. MuldoonM. PortonF. J. Schaaf, Jr.P. SmithY. SongM. TrosenC. WaldonI. J. ZatzR. W. Barnes, Contributing Member

Working Group on General Requirements (BPV III-4)

D. J. Roszman, Chair W. K. Sowder, Jr.

Working Group on In-Vessel Components (BPV III-4)

M. Kalsey, Chair Y. Carin

Working Group on Magnets (BPV III-4)

S. Lee, Chair K. Kim, Vice Chair

Working Group on Materials (BPV III-4)

M. Porton, Chair P. Mummery

Working Group on Vacuum Vessels (BPV III-4)

I. Kimihiro, ChairL. C. Cadwallader

B. R. Doshi

Subgroup on High Temperature Reactors (BPV III)

M. Morishita, ChairR. I. Jetter, Vice ChairS. Sham, SecretaryN. BroomT. D. BurchellM. W. DaviesS. Downey

G. H. Koo

D. K. Morton

J. E. Nestell

G. L. Zeng

X. Li, Contributing Member

L. Shi, Contributing Member

Working Group on High Temperature Gas-Cooled Reactors(BPV III-5)

J. E. Nestell, ChairM. Sengupta, SecretaryN. BroomT. D. BurchellM. W. DaviesR. S. Hill IIIE. V. ImbroR. I. JetterY. W. Kim

T. LeT. R. LupoldS. N. MalikD. L. MarriottD. K. MortonS. ShamG. L. ZengX. Li, Contributing MemberL. Shi, Contributing Member

Working Group on High Temperature Liquid-Cooled Reactors(BPV III-5)

S. Sham, ChairT. Asayama, SecretaryM. ArcaroR. W. BarnesP. CarterM. E. CohenA. B. Hull

R. I. JetterG. H. KooT. LeS. MajumdarM. MorishitaJ. E. NestellG. Wu, Contributing Member

xxviii

Argentina International Working Group (BPV III)

O. Martinez, Staff SecretaryA. AcroglianoW. AgreloG. O. AnteriM. AnticoliC. A. ArayaJ. P. BalbianiA. A. BetervideD. O. BordatoG. BourguigneM. L. CappellaA. ClausR. G. CoccoA. ColeffA. J. Dall’OstoL. M. De BarberisD. P. DelfinoD. N. Dell’ErbaF. G. DiezA. DominguezS. A. EcheverriaJ. FernándezE. P. Fresquet

M. M. GamizoA. GomezI. M. GuerreiroI. A. KnorrM. F. LiendoL. R. MiñoJ. MonteR. L. MorardA. E. PastorE. PizzichiniA. PolitiJ. L. RacamatoH. C. SanziG. J. ScianG. G. SebastianM. E. SzarkoP. N. ToranoA. TurrinO. A. VerasteguiM. D. ViglianoP. YamamotoM. Zunino

China International Working Group (BPV III)

J. Yan, ChairW. Tang, Vice ChairC. A. Sanna, Staff SecretaryY. He, SecretaryL. GuoY. JingD. KangY. LiB. LiangH. LinS. LiuW. LiuJ. MaK. MaoW. Pei

G. SunZ. SunG. TangL. TingY. TuY. WangH. WuX. WuS. XueZ. YinG. ZhangW. ZhangW. ZhaoY. ZhongZ. Zhong

Germany International Working Group (BPV III)

C. Huttner, ChairH.-R. Bath, SecretaryB. ArndtM. BauerG. DaumR. DoringL. GerstnerG. HaenleK.-H. HerterR. E. HueggenbergE. IacopettaU. JendrichD. KoelblG. Kramarz

C. KrumbW. MayingerD. MoehringD. OstermannG. RoosJ. RudolphC. A. SannaH. SchauR. TrieglaffP. VöllmeckeJ. WendtF. WilleM. WinterN. Wirtz

India International Working Group (BPV III)

B. Basu, ChairG. Mathivanan, Vice ChairC. A. Sanna, Staff SecretaryS. B. Parkash, SecretaryA. D. BagdareV. Bhasin

S. KovalaiD. KulkarniM. PonnusamyR. N. SenK. R. ShahA. Sundararajan

Korea International Working Group (BPV III)

G. H. Koo, ChairS. S. Hwang, Vice ChairO.-S. Kim, SecretaryH. S. ByunG.-S. ChoiS. ChoiJ. Y. HongN.-S. HuhJ.-K. HwangC. JangI. I. JeongH. J. KimJ. KimJ.-S. KimK. KimM.-W. KimY.-B. KimY.-S. Kim

D. KwonB. LeeD. LeeSanghoon LeeSangil LeeS.-G. LeeH. LimI.-K. NamB. NohC.-K. OhC. ParkH. ParkJ.-S. ParkT. ShinS. SongJ. S. YangO. Yoo

Special Working Group on Editing and Review (BPV III)

D. E. Matthews, ChairR. L. BrattonR. P. DeublerA. C. EberhardtJ. C. Minichiello

D. K. MortonL. M. PlanteR. F. Reedy, Sr.C. Wilson

Special Working Group on HDPE Stakeholders (BPV III)

D. Burwell, ChairS. Patterson, SecretaryT. M. AdamsM. BrandesS. BruceS. ChoiC. M. FaidyM. GollietJ. GrimesR. M. JesseeJ. Johnston, Jr.

D. Keller

M. Lashley

K. A. Manoly

D. P. Munson

T. M. Musto

J. E. O’SullivanV. Rohatgi

F. J. Schaaf, Jr.

R. Stakenborghs

M. Troughton

Special Working Group on Honors and Awards (BPV III)

R. M. Jessee, ChairA. AppletonR. W. Barnes

D. E. MatthewsJ. C. Minichiello

xxix

Special Working Group on Industry Experience for New Plants(BPV III & BPV XI)

J. T. Lindberg, ChairE. L. Pleins, ChairJ. Ossmann, SecretaryT. L. ChanH. L. GustinP. J. HennesseyD. O. HenryJ. HoncharikE. V. ImbroC. G. Kim

O.-S. Kim

Y.-S. Kim

K. Matsunaga

D. E. Matthews

R. E. McLaughlin

D. W. Sandusky

T. Tsuruta

R. M. Wilson

S. M. Yee

Special Working Group on International Meetings (BPV III)

C. T. Smith, ChairA. Byk, Staff SecretaryT. D. BurchellS. W. CameronR. L. Crane

R. S. Hill IIIM. N. MitchellR. F. Reedy, Sr.C. A. Sanna

Special Working Group on New Plant Construction Issues (BPV III)

E. L. Pleins, ChairM. C. Scott, SecretaryA. BykA. CardilloP. J. CocoJ. HoncharikE. V. ImbroO.-S Kim

M. Kris

J. C. Minichiello

D. W. Sandusky

R. R. Stevenson

R. Troficanto

M. L. Wilson

J. Yan

Special Working Group on Regulatory Interface (BPV III)

E. V. Imbro, ChairP. Malouines, SecretaryS. BellA. CardilloP. J. CocoJ. GrimmJ. Honcharik

K. Matsunaga

D. E. Matthews

B. McGlone

A. T. Roberts III

R. R. Stevenson

M. L. Wilson

COMMITTEE ON HEATING BOILERS (BPV IV)

J. A. Hall, ChairT. L. Bedeaux, Vice ChairG. Moino, Staff SecretaryB. CalderonJ. CallandJ. P. ChicoineJ. M. DownsB. J. IskeJ. KlugP. A. Molvie

G. ScribnerR. D. TrouttM. WadkinsonR. V. WielgoszinskiH. Michael, DelegateD. Picart, DelegateA. Heino, Contributing MemberS. V. Voorhees, ContributingMember

J. L. Kleiss, Alternate

Subgroup on Care and Operation of Heating Boilers (BPV IV)

M. Wadkinson, ChairT. L. BedeauxJ. CallandJ. M. Downs

J. A. HallP. A. MolvieC. Lasarte, Contributing Member

Subgroup on Cast Boilers (BPV IV)

J. P. Chicoine, ChairT. L. Bedeaux, Vice ChairJ. M. Downs

J. A. HallJ. L. Kleiss

Subgroup on Materials (BPV IV)

M. Wadkinson, ChairJ. CallandJ. M. Downs

J. A. HallA. HeinoB. J. Iske

Subgroup on Water Heaters (BPV IV)

J. Calland, ChairL. BadziagowskiJ. P. ChicoineC. DinicB. J. Iske

R. E. OlsonM. A. TaylorT. E. TrantR. D. Troutt

Subgroup on Welded Boilers (BPV IV)

P. A. Molvie, ChairL. BadziagowskiT. L. BedeauxB. CalderonJ. CallandC. Dinic

J. L. KleissR. E. OlsonG. ScribnerR. D. TrouttM. WadkinsonR. V. Wielgoszinski

COMMITTEE ON NONDESTRUCTIVE EXAMINATION (BPV V)

G. W. Hembree, ChairF. B. Kovacs, Vice ChairJ. S. Brzuszkiewicz, Staff SecretaryS. J. AkrinJ. E. BateyP. L. BrownM. A. BurnsB. CaccamiseC. EmslanderN. Y. FaranssoN. A. FinneyA. F. GarbolevskyJ. F. HalleyJ. W. HoufS. A. Johnson

R. W. KruzicC. MayA. B. NagelT. L. PlasekF. J. SattlerP. B. ShawG. M. Gatti, DelegateX. Guiping, DelegateA. S. Birks, Contributing MemberJ. Bennett, AlternateH. C. Graber, Honorary MemberO. F. Hedden, Honorary MemberJ. R. MacKay, Honorary MemberT. G. McCarty, Honorary Member

Executive Committee (BPV V)

F. B. Kovacs, ChairG. W. Hembree, Vice ChairJ. S. Brzuszkiewicz, Staff SecretaryJ. E. BateyB. Caccamise

N. Y. FaranssoN. A. FinneyS. A. JohnsonA. B. Nagel

Subgroup on General Requirements/Personnel Qualifications andInquiries (BPV V)

C. Emslander, ChairJ. W. Houf, Vice ChairS. J. AkrinJ. E. BateyN. CarterN. Y. FaranssoN. A. FinneyG. W. Hembree

S. A. Johnson

F. B. Kovacs

D. I. Morris

A. B. Nagel

A. S. Birks, Contributing Member

J. P. Swezy, Jr., ContributingMember

xxx

Special Working Group on NDE Resource Support (SG-GR/PQ & I)(BPV V)

N. A. Finney, ChairD. AdkinsJ. AndersonD. BajulaJ. BennettC. T. BrownT. ClausingJ. L. GarnerK. Hayes

R. KelsoC. MagruderJ. W. Mefford, Jr.K. PageD. TompkinsD. Van AllenT. VidimosR. WardM. Wolf

Subgroup on Surface Examination Methods (BPV V)

S. A. Johnson, ChairJ. Halley, Vice ChairS. J. AkrinJ. E. BateyP. L. BrownB. CaccamiseN. CarterN. Y. FaranssoN. FarenbaughN. A. Finney

G. W. HembreeR. W. KruzicB. D. LaiteC. MayL. E. MullinsA. B. NagelF. J. SattlerP. B. ShawG. M. Gatti, DelegateA. S. Birks, Contributing Member

Subgroup on Volumetric Methods (BPV V)

A. B. Nagel, ChairN. A. Finney, Vice ChairS. J. AkrinJ. E. BateyP. L. BrownB. CaccamiseJ. M. DavisN. Y. FaranssoA. F. GarbolevskyJ. F. HalleyR. W. Hardy

G. W. Hembree

S. A. Johnson

F. B. Kovacs

R. W. Kruzic

C. May

L. E. Mullins

T. L. Plasek

F. J. Sattler

C. Vorwald

G. M. Gatti, Delegate

Working Group on Acoustic Emissions (SG-VM) (BPV V)

N. Y. Faransso, ChairJ. E. Batey, Vice Chair

S. R. DoctorR. K. Miller

Working Group on Radiography (SG-VM) (BPV V)

B. Caccamise, ChairF. B. Kovacs, Vice ChairS. J. AkrinJ. E. BateyP. L. BrownC. EmslanderN. Y. FaranssoA. F. GarbolevskyR. W. Hardy

G. W. HembreeS. A. JohnsonR. W. KruzicB. D. LaiteC. MayR. J. MillsA. B. NagelT. L. PlasekB. White

Working Group on Ultrasonics (SG-VM) (BPV V)

N. A. Finney, ChairJ. F. Halley, Vice ChairB. CaccamiseJ. M. DavisC. EmslanderN. Y. FaranssoP. T. HayesS. A. Johnson

R. W. Kruzic

B. D. Laite

C. May

L. E. Mullins

A. B. Nagel

F. J. Sattler

C. Vorwald

Working Group on GuidedWave Ultrasonic Testing (SG-VM) (BPV V)

N. Y. Faransso, ChairJ. E. Batey, Vice ChairD. AlleyneN. AmirJ. F. Halley

S. A. JohnsonG. M. LightP. MudgeM. J. QuarryJ. Vanvelsor

Italy International Working Group (BPV V)

P. L. Dinelli, ChairA. Veroni, SecretaryR. BertolottiF. BrescianiG. CamposN. CaputoM. ColomboF. FerrareseE. Ferrari

M. A. Grimoldi

G. Luoni

O. Oldani

P. Pedersoli

A. Tintori

M. Zambon

G. Gobbi, Contributing Member

G. Pontiggia, Contributing Member

COMMITTEE ON PRESSURE VESSELS (BPV VIII)

R. J. Basile, ChairS. C. Roberts, Vice ChairE. Lawson, Staff SecretaryS. J. Rossi, Staff SecretaryG. Aurioles, Sr.J. CameronA. ChaudouetD. B. DeMichaelJ. P. GlaspieJ. F. GrubbL. E. Hayden, Jr.G. G. KarcherD. L. KurleK. T. LauM. D. LowerR. MahadeenR. W. MikitkaU. R. MillerB. R. MorelockT. P. PastorD. T. PetersM. J. PischkeM. D. Rana

G. B. Rawls, Jr.F. L. RichterC. D. RoderyE. SoltowJ. C. SowinskiD. B. StewartD. A. SwansonJ. P. Swezy, Jr.S. TeradaE. UpitisR. Duan, DelegateP. A. McGowan, DelegateH. Michael, DelegateK. Oyamada, DelegateM. E. Papponetti, DelegateX. Tang, DelegateM. Gold, Contributing MemberW. S. Jacobs, Contributing MemberK. Mokhtarian, ContributingMember

C. C. Neely, Contributing MemberK. K. Tam, Honorary Member

Subgroup on Design (BPV VIII)

D. A. Swanson, ChairJ. C. Sowinski, Vice ChairM. Faulkner, SecretaryG. Aurioles, Sr.S. R. BabkaO. A. BarskyR. J. BasileM. R. BreachF. L. BrownD. ChandiramaniB. F. HantzC. E. HinnantC. S. HinsonM. H. JawadD. L. KurleM. D. LowerR. W. MikitkaU. R. MillerT. P. Pastor

M. D. RanaG. B. Rawls, Jr.S. C. RobertsC. D. RoderyT. G. SeippD. SrnicS. TeradaJ. VattappillyR. A. WhippleK. XuK. Oyamada, DelegateM. E. Papponetti, DelegateW. S. Jacobs, Contributing MemberP. K. Lam, Contributing MemberK. Mokhtarian, ContributingMember

S. C. Shah, Contributing MemberK. K. Tam, Contributing Member

xxxi

Working Group on Design-By-Analysis (BPV VIII)

B. F. Hantz, ChairT. W. Norton, SecretaryR. G. BrownD. DeweesR. D. DixonZ. GuC. F. Heberling IIC. E. HinnantR. JainM. H. Jawad

S. KrishnamurthyA. MannG. A. MillerC. NadarajahP. PrueterM. D. RanaT. G. SeippM. A. ShahS. TeradaD. Arnett, Contributing Member

Subgroup on Fabrication and Examination (BPV VIII)

J. P. Swezy, Jr., ChairD. I. Morris, Vice ChairE. A. Whittle, Vice ChairB. R. Morelock, SecretaryN. CarterS. FlynnS. HeaterO. MuletM. J. PischkeM. J. RiceC. D. Rodery

B. F. Shelley

P. L. Sturgill

E. Upitis

K. Oyamada, Delegate

W. J. Bees, Contributing Member

L. F. Campbell, ContributingMember

W. S. Jacobs, Contributing Member

J. Lee, Contributing Member

R. Uebel, Contributing Member

Subgroup on General Requirements (BPV VIII)

M. D. Lower, ChairJ. P. Glaspie, Vice ChairF. L. Richter, SecretaryR. J. BasileD. T. DavisD. B. DeMichaelM. FaulknerF. HamtakL. E. Hayden, Jr.

K. T. LauT. P. PastorS. C. RobertsJ. C. SowinskiP. SperanzaD. B. StewartD. A. SwansonR. UebelC. C. Neely, Contributing Member

Task Group on Subsea Applications (BPV VIII)

R. Cordes, ChairL. P. AntalffyR. C. BielP. BunchJ. EllensS. HarbertX. KaculiK. Karpanan

F. Kirkemo

C. Lan

N. McKie

S. K. Parimi

M. Sarzynski

Y. Wada

D. T. Peters, Contributing Member

Task Group on UG-20(f) (BPV VIII)

S. Krishnamurthy, ChairT. AndersonK. BagnoliR. P. DeublerB. F. Hantz

B. R. MacejkoJ. PensoM. PragerM. D. Rana

Task Group on U-2(g) (BPV VIII)

G. Aurioles, Sr.S. R. BabkaR. J. BasileD. K. ChandiramaniR. MahadeenU. R. MillerT. W. NortonT. P. Pastor

R. F. Reedy, Sr.S. C. RobertsM. A. ShahD. SrnicD. A. SwansonJ. P. Swezy, Jr.R. UebelK. K. Tam, Contributing Member

Subgroup on Heat Transfer Equipment (BPV VIII)

G. Aurioles, Sr., ChairS. R. Babka, Vice ChairP. Matkovics, SecretaryD. AngstadtM. BahadoriJ. H. BarbeeO. A. BarskyL. BowerA. ChaudouetM. D. ClarkS. JeyakumarG. G. KarcherD. L. KurleR. MahadeenS. Mayeux

U. R. MillerD. SrnicA. M. VoytkoR. P. WibergI. G. Campbell, ContributingMember

I. Garcia, Contributing MemberJ. Mauritz, Contributing MemberT. W. Norton, Contributing MemberF. Osweiller, Contributing MemberJ. Pasek, Contributing MemberR. Tiwari, Contributing MemberS. Yokell, Contributing MemberS. M. Caldwell, Honorary Member

Task Group on Plate Heat Exchangers (BPV VIII)

P. Matkovics, ChairS. R. BabkaK. DevlinS. FlynnJ. F. GrubbF. Hamtak

R. MahadeenD. I. MorrisM. J. PischkeC. M. RomeroE. SoltowD. Srnic

Subgroup on High Pressure Vessels (BPV VIII)

D. T. Peters, ChairG. M. Mital, Vice ChairA. P. Maslowski, Staff SecretaryL. P. AntalffyR. C. BielP. N. ChakuR. CordesR. D. DixonL. FridlundR. T. HallmanA. H. HonzaJ. A. KappJ. KeltjensA. K. KhareN. McKieS. C. MordreG. T. Nelson

E. A. RodriguezE. D. RollK. C. Simpson, Jr.J. R. SimsD. L. StangF. W. TatarS. TeradaJ. L. TraudR. WinkK.-J. YoungR. M. Hoshman, ContributingMember

D. J. Burns, Honorary MemberD. M. Fryer, Honorary MemberG. J. Mraz, Honorary MemberE. H. Perez, Honorary Member

xxxii

Subgroup on Materials (BPV VIII)

J. Cameron, ChairP. G. Wittenbach, Vice ChairK. Xu, SecretaryA. Di RienzoJ. D. FritzJ. F. GrubbM. KowalczykW. M. LundyJ. Penso

D. W. RahoiR. C. SutherlinE. UpitisG. S. Dixit, Contributing MemberM. Gold, Contributing MemberM. Katcher, Contributing MemberJ. A. McMaster, ContributingMember

E. G. Nisbett, Contributing Member

Subgroup on Toughness (BPV II & BPV VIII)

D. L. Kurle, ChairK. Xu, Vice ChairN. CarterW. S. JacobsK. E. OrieM. D. RanaF. L. RichterK. SubramanianD. A. Swanson

J. P. Swezy, Jr.

S. Terada

E. Upitis

J. Vattappilly

K. Oyamada, Delegate

K. Mokhtarian, ContributingMember

C. C. Neely, Contributing Member

Subgroup on Graphite Pressure Equipment (BPV VIII)

A. Viet, ChairG. C. BechererF. L. Brown

C. W. CaryE. SoltowA. A. Stupica

China International Working Group (BPV VIII)

X. Chen, ChairB. Shou, Vice ChairZ. Fan, SecretaryY. ChenZ. ChenJ. CuiR. DuanW. GuoB. HanJ. HuQ. HuH. Hui

D. LuoY. LuoC. MiaoX. QianB. WangF. XuF. XuanK. ZhangY. ZhangS. ZhaoJ. ZhengG. Zhu

Germany International Working Group (BPV VIII)

P. Chavdarov, ChairA. Spangenberg, Vice ChairH. P. Schmitz, SecretaryB. DaumeA. EmrichJ. FleischfresserA. GastbergR. HelmholdtR. Kauer

D. Koelbl

S. Krebs

T. Ludwig

R. A. Meyers

H. Michael

P. Paluszkiewicz

H. Schroeder

M. Sykora

Italy International Working Group (BPV VIII)

G. Pontiggia, ChairA. Veroni, SecretaryB. G. AlboraliP. AngeliniR. BoattiA. CamanniP. ContiP. L. DinelliF. Finco

M. GuglielmettiP. MantovaniM. MassobrioL. MoracchioliC. SangalettiS. SartiA. TeliI. VenierG. Gobbi, Contributing Member

Special Working Group on Bolted Flanged Joints (BPV VIII)

R. W. Mikitka, ChairW. BrownH. ChenW. J. Koves

J. R. PayneG. B. Rawls, Jr.M. S. Shelton

Working Group on Design (BPV VIII Div. 3)

E. D. Roll, ChairC. Becht VR. C. BielR. CordesR. D. DixonL. FridlundR. T. HallmanK. KarpananJ. KeltjensN. McKieG. M. MitalS. C. MordreG. T. NelsonD. T. Peters

K. C. SimpsonJ. R. SimsD. L. StangK. SubramanianS. TeradaJ. L. TraudR. WinkY. XuF. Kirkemo, Contributing MemberD. J. Burns, Honorary MemberD. M. Fryer, Honorary MemberG. J. Mraz, Honorary MemberE. H. Perez, Honorary Member

Working Group on Materials (BPV VIII Div. 3)

F. W. Tatar, ChairL. P. AntalffyP. N. Chaku

J. A. KappA. K. Khare

Task Group on Impulsively Loaded Vessels (BPV VIII)

E. A. Rodriguez, ChairG. A. AntakiJ. K. AsahinaD. D. BarkerA. M. ClaytonJ. E. Didlake, Jr.T. A. DuffeyB. L. HaroldsenK. HayashiD. HildingK. W. KingR. Kitamura

R. A. LeishearP. O. LeslieF. OhlsonC. RomeroN. RushtonJ. H. StoflethQ. Dong, Contributing MemberH.-P. Schildberg, ContributingMember

J. E. Shepherd, ContributingMember

M. Yip, Contributing Member

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Subgroup on Interpretations (BPV VIII)

U. R. Miller, ChairE. Lawson, Staff SecretaryG. Aurioles, Sr.R. J. BasileJ. CameronR. D. DixonM. KowalczykD. L. KurleM. D. LowerR. MahadeenG. M. Mital

D. I. MorrisD. T. PetersS. C. RobertsC. D. RoderyD. B. StewartP. L. SturgillD. A. SwansonJ. P. Swezy, Jr.J. VattappillyP. G. WittenbachT. P. Pastor, Contributing Member

COMMITTEE ON WELDING, BRAZING, AND FUSING (BPV IX)

D. A. Bowers, ChairM. J. Pischke, Vice ChairS. J. Rossi, Staff SecretaryM. BernasekM. A. BoringJ. G. FeldsteinP. D. FlennerS. E. GingrichK. L. HayesR. M. JesseeJ. S. LeeW. M. LundyT. MelfiW. F. Newell, Jr.D. K. PeetzE. G. ReicheltM. J. RiceM. B. Sims

W. J. SperkoM. J. StankoP. L. SturgillJ. P. Swezy, Jr.P. L. Van FossonE. W. WoelfelA. Roza, DelegateM. Consonni, Contributing MemberS. A. Jones, Contributing MemberA. S. Olivares, ContributingMember

S. Raghunathan, ContributingMember

R. K. Brown, Jr., Honorary MemberM. L. Carpenter, Honorary MemberB. R. Newmark, Honorary MemberS. D. Reynolds, Jr., HonoraryMember

Subgroup on Brazing (BPV IX)

M. J. Pischke, ChairE. W. BeckmanL. F. CampbellM. L. Carpenter

A. F. GarbolevskyN. MohrA. R. NyweningJ. P. Swezy, Jr.

Subgroup on General Requirements (BPV IX)

P. L. Sturgill, ChairE. W. BeckmanJ. P. BellD. A. BowersG. ChandlerP. R. EvansS. FlynnP. GilstonF. HamtakA. Howard

R. M. JesseeD. MobleyD. K. PeetzJ. PillowH. B. PorterJ. P. Swezy, Jr.K. R. WillensE. W. WoelfelE. Molina, DelegateB. R. Newmark, Honorary Member

Subgroup on Materials (BPV IX)

M. Bernasek, ChairT. AndersonJ. L. ArnoldE. CutlipS. S. FioreS. E. GingrichL. S. HarbisonR. M. JesseeT. Melfi

M. J. Pischke

A. Roza

C. E. Sainz

W. J. Sperko

M. J. Stanko

P. L. Sturgill

J. Warren

C. Zanfir

Subgroup on Plastic Fusing (BPV IX)

E. W. Woelfel, ChairD. BurwellM. GhahremaniK. L. HayesR. M. JesseeJ. Johnston, Jr.

J. E. O’SullivanE. G. ReicheltM. J. RiceS. SchuesslerM. TroughtonJ. Wright

Subgroup on Welding Qualifications (BPV IX)

M. J. Rice, ChairJ. S. Lee, Vice ChairM. BernasekM. A. BoringD. A. BowersR. B. CorbitP. D. FlennerL. S. HarbisonK. L. HayesW. M. LundyT. MelfiW. F. Newell, Jr.B. R. NewtonS. Raghunathan

E. G. ReicheltM. B. SimsW. J. SperkoS. A. SpragueP. L. SturgillJ. P. Swezy, Jr.P. L. Van FossonT. C. WiesnerA. D. WilsonD. Chandiramani, ContributingMember

M. Consonni, Contributing MemberM. Degan, Contributing Member

Italy International Working Group (BPV IX)

A. Camanni, ChairA. Veroni, SecretaryP. AngeliniR. BoattiP. L. DinelliF. FerrareseA. GhidiniE. LazzariL. Lotti

N. Maestri

M. Mandina

M. Massobrio

L. Moracchioli

G. Pontiggia

S. Verderame

A. Volpi

G. Gobbi, Contributing Member

COMMITTEE ON FIBER-REINFORCED PLASTIC PRESSURE VESSELS(BPV X)

D. Eisberg, ChairB. F. Shelley, Vice ChairP. D. Stumpf, Staff SecretaryA. L. BeckwithD. BentleyF. L. BrownJ. L. BustillosB. R. ColleyT. W. CowleyI. L. DinovoM. R. GormanB. HebbM. J. Hendrix

D. H. HodgkinsonL. E. HuntD. L. KeelerB. M. LinnemannD. H. McCauleyN. L. NewhouseD. J. PainterA. A. PollockG. RamirezJ. R. RichterD. O. Yancey, Jr.P. H. Ziehl

xxxiv

COMMITTEE ON NUCLEAR INSERVICE INSPECTION (BPV XI)

G. C. Park, ChairS. D. Kulat, Vice ChairR. W. Swayne, Vice ChairL. Powers, Staff SecretaryV. L. ArmentroutJ. F. BallW. H. BamfordS. B. BrownT. L. ChanR. C. CipollaD. R. CordesD. D. DavisR. L. DyleE. V. Farrell, Jr.M. J. FerlisiP. D. FisherE. B. GerlachT. J. GriesbachJ. HakiiD. O. HenryW. C. HolstonD. W. LamondD. R. LeeG. A. LofthusE. J. MaloneyG. Navratil

S. A. NormanJ. E. O’SullivanR. K. RhyneA. T. Roberts IIID. A. ScarthF. J. Schaaf, Jr.J. C. Spanner, Jr.D. J. TillyD. E. WaskeyJ. G. WeicksH. D. Chung, DelegateC. Ye, DelegateR. E. Gimple, Contributing MemberR. D. Kerr, Contributing MemberB. R. Newton, Contributing MemberR. A. West, Contributing MemberR. A. Yonekawa, ContributingMember

M. L. Benson, AlternateJ. T. Lindberg, AlternateR. O. McGill, AlternateC. J. Wirtz, AlternateC. D. Cowfer, Honorary MemberF. E. Gregor, Honorary MemberO. F. Hedden, Honorary MemberP. C. Riccardella, Honorary Member

Executive Committee (BPV XI)

S. D. Kulat, ChairG. C. Park, Vice ChairL. Powers, Staff SecretaryW. H. BamfordR. L. DyleM. J. FerlisiE. B. Gerlach

W. C. HolstonD. W. LamondJ. T. LindbergR. K. RhyneJ. C. Spanner, Jr.R. W. SwayneM. L. Benson, Alternate

Argentina International Working Group (BPV XI)

O. Martinez, Staff SecretaryD. A. CipollaA. ClausD. CostaD. P. DelfinoD. N. Dell’ErbaA. DominguezS. A. EcheverriaE. P. FresquetM. M. GamizoI. M. GuerreiroM. F. LiendoF. Llorente

R. J. LopezM. MagliocchiL. R. MiñoJ. MonteM. D. PeredaA. PolitiC. G. RealF. M. SchroeterG. J. ScianM. J. SolariP. N. ToranoO. A. VerasteguiP. Yamamoto

China International Working Group (BPV XI)

J. H. Liu, ChairY. Nie, Vice ChairC. Ye, Vice ChairM. W. Zhou, SecretaryJ. F. CaiD. X. ChenH. ChenH. D. ChenY. B. GuoY. HouD. M. KangS. W. LiX. Y. LiangS. X. LinL. Q. Liu

Y. LiuW. N. PeiC. L. PengG. X. TangQ. WangQ. W. WangZ. S. WangL. WeiF. XuZ. Y. XuQ. YinK. ZhangX. L. ZhangY. ZhangZ. M. Zhong

Germany International Working Group (BPV XI)

H.-R. BathR. DoringB. ErhardM. HagenbruchB. HoffmannE. Iacopetta

U. Jendrich

H. Schau

H.-J. Scholtka

X. Schuler

J. Wendt

Special Working Group on Editing and Review (BPV XI)

R. W. Swayne, ChairC. E. MoyerK. R. Rao

J. E. StaffieraD. J. TillyC. J. Wirtz

Task Group on Inspectability (BPV XI)

J. T. Lindberg, ChairM. J. Ferlisi, SecretaryW. H. BamfordA. CardilloD. R. CordesD. O. HenryE. HenryJ. HoncharikJ. HowardR. KleinC. Latiolais

D. Lieb

G. A. Lofthus

D. E. Matthews

P. J. O’ReganJ. Ossmann

R. Rishel

S. A. Sabo

P. Sullivan

C. Thomas

J. Tucker

Task Group on ISI of Spent Nuclear Fuel Storage and TransportationContainment Systems (BPV XI)

K. Hunter, ChairA. Alleshwaram, SecretaryD. J. AmmermanW. H. BorterJ. BroussardS. BrownC. R. BryanT. CarraherD. DunnN. FalesR. C. FolleyB. GuthermanS. HorowitzM. W. JosephH. JungM. Liu

R. M. MeyerB. L. MontgomeryM. MoranT. NuofferM. OrihuelaR. PaceE. L. PleinsR. SindelarH. SmithJ. C. Spanner, Jr.C. J. TemusG. WhiteX. J. ZhaiP.-S. Lam, AlternateJ. Wise, Alternate

xxxv

Subgroup on Evaluation Standards (SG-ES) (BPV XI)

W. H. Bamford, ChairN. A. Palm, SecretaryH. D. ChungR. C. CipollaR. L. DyleC. M. FaidyB. R. GantaT. J. GriesbachK. HasegawaK. HojoD. N. HopkinsK. KoyamaD. R. Lee

Y. S. LiR. O. McGillH. S. MehtaK. MiyazakiR. PaceJ. C. PoehlerS. RanganathD. A. ScarthT. V. VoK. R. WichmanS. X. XuM. L. Benson, AlternateT. Hardin, Alternate

Task Group on Evaluation of Beyond Design Basis Events (SG-ES)(BPV XI)

R. Pace, ChairK. E. Woods, SecretaryG. A. AntakiP. R. DonavinR. G. GiladaT. J. GriesbachH. L. GustinM. HayashiK. Hojo

S. A. Kleinsmith

H. S. Mehta

D. V. Sommerville

T. V. Vo

K. R. Wichman

G. M. Wilkowski

S. X. Xu

T. Weaver, Contributing Member

Working Group on Flaw Evaluation (SG-ES) (BPV XI)

R. C. Cipolla, ChairS. X. Xu, SecretaryW. H. BamfordM. L. BensonB. BezensekM. BrumovskyH. D. ChungT. E. DemersC. M. FaidyB. R. GantaR. G. GiladaH. L. GustinF. D. HayesP. H. HoangK. HojoD. N. HopkinsY. KimK. KoyamaV. Lacroix

D. R. LeeY. S. LiM. LiuH. S. MehtaG. A. A. MiessiK. MiyazakiR. K. QashuS. RanganathP. J. RushD. A. ScarthW. L. ServerD.-J. ShimA. UdyawarT. V. VoB. WasilukK. R. WichmanG. M. WilkowskiD. L. Rudland, Alternate

Task Group on Crack Growth Reference Curves (BPV XI)

D. A. Scarth, ChairH. I. Gustin, SecretaryW. H. BamfordM. L. BensonF. W. BrustR. C. CipollaR. L. DyleK. Hasegawa

D. N. HopkinsK. KashimaK. KoyamaD. R. LeeH. S. MehtaK. MiyazakiS. RanganathT. V. Vo

Task Group on Evaluation Procedures for Degraded Buried Pipe(WG-PFE) (BPV XI)

R. O. McGill, ChairS. X. Xu, SecretaryG. A. AntakiR. C. CipollaK. HasegawaK. M. Hoffman

G. A. A. MiessiM. MoenssensD. P. MunsonR. PaceP. J. RushD. A. Scarth

Working Group on Operating Plant Criteria (SG-ES) (BPV XI)

N. A. Palm, ChairA. E. Freed, SecretaryV. Marthandam, SecretaryK. R. BakerW. H. BamfordM. BrumovskyT. L. DicksonR. L. DyleS. R. GosselinT. J. GriesbachM. HayashiS. A. KleinsmithH. KobayashiH. S. Mehta

A. D. OdellR. PaceJ. C. PoehlerS. RanganathW. L. ServerD. V. SommervilleC. A. TomesA. UdyawarT. V. VoD. P. WeaklandK. E. WoodsH. Q. XuT. Hardin, Alternate

Working Group on Pipe Flaw Evaluation (SG-ES) (BPV XI)

D. A. Scarth, ChairG. M. Wilkowski, SecretaryK. AzumaW. H. BamfordM. L. BensonM. BrumovskyF. W. BrustH. D. ChungR. C. CipollaN. G. CofieJ. M. DavisT. E. DemersC. M. FaidyB. R. GantaS. R. GosselinC. E. Guzman-LeongK. HasegawaP. H. HoangK. HojoD. N. Hopkins

E. J. HoustonR. JanowiakS. KalyanamK. KashimaV. LacroixY. S. LiR. O. McGillH. S. MehtaG. A. A. MiessiK. MiyazakiS. H. PelletH. RathbunP. J. RushD.-J. ShimA. UdyawarT. V. VoB. WasilukS. X. XuA. Alleshwaram, Alternate

Subgroup on Nondestructive Examination (SG-NDE) (BPV XI)

J. C. Spanner, Jr., ChairD. R. Cordes, SecretaryT. L. ChanS. E. CumblidgeF. E. DohmenK. J. HackerJ. HarrisonD. O. Henry

J. T. LindbergG. A. LofthusG. R. PerkinsS. A. SaboF. J. Schaaf, Jr.R. V. SwainC. J. WirtzC. A. Nove, Alternate

xxxvi

Working Group on Personnel Qualification and Surface Visual andEddy Current Examination (SG-NDE) (BPV XI)

J. T. Lindberg, ChairJ. E. Aycock, SecretaryC. Brown, SecretaryS. E. CumblidgeA. DiazN. Farenbaugh

D. O. HenryJ. W. HoufC. ShinskyJ. C. Spanner, Jr.J. T. TimmC. J. Wirtz

Working Group on Procedure Qualification and VolumetricExamination (SG-NDE) (BPV XI)

G. A. Lofthus, ChairJ. Harrison, SecretaryG. R. Perkins, SecretaryM. T. AndersonM. BrileyA. BushmireD. R. CordesM. DennisS. R. Doctor

F. E. DohmenK. J. HackerD. A. KullC. A. NoveD. NowakowskiS. A. SaboR. V. SwainS. J. ToddD. K. Zimmerman

Subgroup on Repair/Replacement Activities (SG-RRA) (BPV XI)

E. B. Gerlach, ChairE. V. Farrell, Jr., SecretaryJ. F. BallS. B. BrownR. ClowP. D. FisherK. J. KarwoskiS. L. McCrackenB. R. Newton

J. E. O’Sullivan

S. Schuessler

R. R. Stevenson

R. W. Swayne

D. J. Tilly

D. E. Waskey

J. G. Weicks

P. Raynaud, Alternate

Working Group on Welding and Special Repair Processes (SG-RRA)(BPV XI)

D. E. Waskey, ChairD. J. Tilly, SecretaryD. BarborakS. J. FindlanP. D. FisherM. L. HallK. J. KarwoskiC. C. Kim

M. Kris

S. L. McCracken

D. B. Meredith

B. R. Newton

J. E. O’Sullivan

D. Segletes

J. G. Weicks

Working Group on Nonmetals Repair/Replacement Activities(SG-RRA) (BPV XI)

J. E. O'Sullivan, ChairS. Schuessler, SecretaryJ. Johnston, Jr.M. LashleyM. P. Marohl

T. M. MustoS. PattersonA. PridmoreP. RaynaudF. J. Schaaf, Jr.

Task Group on Repair by Carbon Fiber Composites(WGN-MRR) (BPV XI)

J. E. O'Sullivan, ChairB. DavenportM. GollietL. S. GordonM. P. MarohlN. MeyerR. P. OjdrovicD. PegueroA. Pridmore

P. RaynaudC. W. RowleyV. RoyJ. SealeyN. StoevaM. F. UddinJ. WenT. Jimenez, AlternateG. M. Lupia, Alternate

Working Group on Design and Programs (SG-RRA) (BPV XI)

S. B. Brown, ChairA. B. Meichler, SecretaryO. BhattyR. ClowR. R. CroftE. V. Farrell, Jr.E. B. Gerlach

H. Malikowski

M. A. Pyne

P. Raynaud

R. R. Stevenson

R. W. Swayne

R. Turner

Subgroup on Water-Cooled Systems (SG-WCS) (BPV XI)

D. W. Lamond, ChairG Navratil, SecretaryJ. M. AgoldV. L. ArmentroutJ. M. BoughmanS. B. BrownS. T. ChesworthD. D. DavisH. Q. DoM. J. Ferlisi

K. W. Hall

P. J. Hennessey

K. Hoffman

S. D. Kulat

T. Nomura

T. Nuoffer

G. C. Park

H. M. Stephens, Jr.

M. J. Homiack, Alternate

Task Group on High Strength Nickel Alloys Issues (SG-WCS) (BPV XI)

R. L. Dyle, ChairB. L. Montgomery, SecretaryW. H. BamfordP. R. DonavinK. HoffmanK. KoyamaC. Lohse

H. MalikowskiS. E. MarletteG. C. ParkG. R. PolingJ. M. ShupingJ. C. Spanner, Jr.D. P. Weakland

Working Group on Containment (SG-WCS) (BPV XI)

H. M. Stephens, Jr., ChairS. G. Brown, SecretaryP. S. GhosalH. T. HillR. D. HoughB. Lehman

J. McIntyre

J. A. Munshi

M. Sircar

S. Walden, Alternate

T. J. Herrity, Alternate

Working Group on Inspection of Systems and Components(SG-WCS) (BPV XI)

M. J. Ferlisi, ChairN. Granback, SecretaryJ. M. AgoldR. W. BlydeC. Cueto-FelguerosoH. Q. DoK. W. HallK. M. Hoffman

S. D. Kulat

A. Lee

G. J. Navratil

T. Nomura

J. C. Nygaard

R. Rishel

J. C. Younger

xxxvii

Working Group on Pressure Testing (SG-WCS) (BPV XI)

J. M. Boughman, ChairS. A. Norman, SecretaryT. AnselmiY.-K. ChungM. J. Homiack

A. E. KeyserD. W. LamondJ. K. McClanahanB. L. MontgomeryC. Thomas

Task Group on Buried Components Inspection and Testing(WG-PT) (BPV XI)

D. W. Lamond, ChairJ. M. Boughman, SecretaryM. Moenssens, SecretaryT. Anselmi

B. DavenportA. HiserJ. Ossmann

Working Group on Risk-Informed Activities (SG-WCS) (BPV XI)

M. A. Pyne, ChairS. T. Chesworth, SecretaryJ. M. AgoldC. Cueto-FelguerosoR. HaesslerJ. HakiiK. W. HallM. J. HomiackS. D. Kulat

D. W. Lamond

R. K. Mattu

A. McNeill III

G. J. Navratil

P. J. O’Regan

N. A. Palm

D. Vetter

J. C. Younger

Working Group on General Requirements (BPV XI)

R. K. Rhyne, ChairC. E. Moyer, SecretaryJ. F. BallT. L. Chan

P. J. HennesseyE. J. MaloneyR. K. MattuT. Nuoffer

Special Working Group on Reliability and Integrity ManagementProgram (BPV XI)

F. J. Schaaf, Jr., ChairA. T. Roberts III, SecretaryN. BroomS. R. DoctorS. DowneyJ. D. FletcherJ. T. FongT. GrahamN. GranbackJ. Grimm

D. M. Jones

A. L. Krinzman

D. R. Lee

R. K. Miller

M. N. Mitchell

R. Morrill

T. Roney

R. W. Swayne

S. Takaya

JSME/ASME Joint Task Group for System-Based Code (SWG-RIM)(BPV XI)

T. Asayama, ChairS. R. DoctorK. DozakiS. R. GosselinM. HayashiD. M. JonesY. KamishimaA. L. Krinzman

D. R. Lee

H. Machida

M. Morishita

A. T. Roberts III

F. J. Schaaf, Jr.

S. Takaya

D. Watanabe

COMMITTEE ON TRANSPORT TANKS (BPV XII)

M. D. Rana, ChairN. J. Paulick, Vice ChairR. Lucas, Staff SecretaryA. N. AntoniouP. ChilukuriW. L. GarfieldG. G. Karcher

M. PittsT. A. RogersS. StaniszewskiA. P. VargheseJ. A. Byers, Contributing MemberR. Meyers, Contributing MemberM. R. Ward, Contributing Member

Executive Committee (BPV XII)

N. J. Paulick, ChairR. Lucas, Staff SecretaryM. Pitts

M. D. RanaS. StaniszewskiA. P. Varghese

Subgroup on Design and Materials (BPV XII)

A. P. Varghese, ChairR. C. Sallash, SecretaryD. K. ChandiramaniP. ChilukuriY. DoronR. D. HayworthG. G. KarcherS. L. McWilliamsN. J. PaulickM. D. Rana

T. A. Rogers

S. Staniszewski

K. Xu

A. T. Duggleby, ContributingMember

T. J. Hitchcock, ContributingMember

M. R. Ward, Contributing Member

J. Zheng, Contributing Member

Subgroup on Fabrication, Inspection, and Continued Service(BPV XII)

M. Pitts, ChairP. Chilukuri, SecretaryR. D. HayworthK. ManskerG. McRaeO. MuletT. A. RogersM. RudekR. C. Sallash

L. SelenskyS. StaniszewskiS. E. Benet, Contributing MemberJ. A. Byers, Contributing MemberA. S. Olivares, ContributingMember

L. H. Strouse, Contributing MemberS. V. Voorhees, ContributingMember

Subgroup on General Requirements (BPV XII)

S. Staniszewski, ChairB. F. Pittel, SecretaryA. N. AntoniouY. DoronJ. L. FreilerW. L. GarfieldO. MuletM. PittsT. RummelR. C. SallashL. Selensky

P. Chilukuri, Contributing MemberK. L. Gilmore, Contributing MemberT. J. Hitchcock, ContributingMember

G. McRae, Contributing MemberS. L. McWilliams, ContributingMember

T. A. Rogers, Contributing MemberD. G. Shelton, Contributing MemberL. H. Strouse, Contributing MemberM. R. Ward, Contributing Member

xxxviii

Subgroup on Nonmandatory Appendices (BPV XII)

N. J. Paulick, ChairS. Staniszewski, SecretaryP. ChilukuriR. D. HayworthK. ManskerS. L. McWilliamsN. J. PaulickM. PittsT. A. RogersR. C. Sallash

D. G. Shelton

S. E. Benet, Contributing Member

D. D. Brusewitz, ContributingMember

T. J. Hitchcock, ContributingMember

A. P. Varghese, ContributingMember

M. R. Ward, Contributing Member

COMMITTEE ON OVERPRESSURE PROTECTION (BPV XIII)

D. B. DeMichael, ChairC. E. O’Brien, Staff SecretaryJ. F. BallJ. BurgessS. CammeresiJ. A. CoxR. D. DanzyJ. P. Glaspie

S. F. HarrisonW. F. HartD. MillerB. K. NutterT. PatelM. PoehlmannZ. WangJ. A. West

COMMITTEE ON BOILER AND PRESSURE VESSEL CONFORMITYASSESSMENT (CBPVCA)

P. D. Edwards, ChairL. E. McDonald, Vice ChairK. I. Baron, Staff SecretaryM. Vazquez, Staff SecretaryJ. P. ChicoineD. C. CookT. E. HansenK. T. LauD. MillerB. R. MorelockJ. D. O’LearyG. ScribnerB. C. TurczynskiD. E. TuttleR. UebelE. A. WhittleR. V. Wielgoszinski

D. Cheetham, Contributing MemberT. P. Beirne, AlternateJ. B. Carr, AlternateJ. W. Dickson, AlternateJ. M. Downs, AlternateB. J. Hackett, AlternateB. L. Krasiun, AlternateD. W. Linaweaver, AlternateP. F. Martin, AlternateI. Powell, AlternateR. Rockwood, AlternateL. Skarin, AlternateR. D. Troutt, AlternateS. V. Voorhees, AlternateP. Williams, AlternateA. J. Spencer, Honorary Member

COMMITTEE ON NUCLEAR CERTIFICATION (CNC)

R. R. Stevenson, ChairJ. DeKleine, Vice ChairE. Suarez, Staff SecretaryG. GobbiS. M. GoodwinJ. W. HighlandsK. A. HuberJ. C. KraneM. A. LockwoodR. P. McIntyreL. M. PlanteH. B. PrasseT. E. QuakaC. T. SmithC. TuryloD. M. VickeryE. A. WhittleC. S. Withers

S. F. Harrison, ContributingMember

S. Andrews, AlternateD. Arrigo, AlternateJ. Ball, AlternateP. J. Coco, AlternateP. D. Edwards, AlternateD. P. Gobbi, AlternateK. M. Hottle, AlternateK. A. Kavanagh, AlternateP. Krane, AlternateD. Nenstiel, AlternateM. Paris, AlternateG. Szabatura, AlternateA. Torosyan, AlternateS. V. Voorhees, AlternateS. Yang, Alternate

Subcommittee on Safety Valve Requirements (SC-SVR)

D. B. DeMichael, ChairC. E. O’Brien, Staff SecretaryJ. F. BallJ. BurgessS. CammeresiJ. A. CoxR. D. DanzyJ. P. GlaspieS. F. Harrison

W. F. Hart

D. Miller

B. K. Nutter

T. Patel

M. Poehlmann

Z. Wang

J. A. West

S. R. Irvin, Sr., Alternate

Subgroup on Design (SC-SVR)

D. Miller, ChairC. E. BeairB. JoergensenB. J. Mollitor

T. PatelJ. A. WestR. D. Danzy, Contributing Member

Subgroup on General Requirements (SC-SVR)

J. F. Ball, ChairG. BrazierJ. BurgessD. B. DeMichaelS. T. French

J. P. GlaspieB. F. PittelM. PoehlmannD. E. TuttleJ. White

Subgroup on Testing (SC-SVR)

W. F. Hart, ChairT. P. BeirneJ. E. BrittJ. BuehrerS. CammeresiJ. A. CoxJ. W. Dickson

A. DonaldsonG. D. GoodsonB. K. NutterC. SharpeZ. WangA. WilsonS. R. Irvin, Sr., Alternate

U.S. Technical Advisory Group ISO/TC 185 Safety Relief Valves

T. J. Bevilacqua, ChairC. E. O’Brien, Staff SecretaryJ. F. BallG. BrazierD. B. DeMichael

D. MillerB. K. NutterT. PatelJ. A. West

xxxix

INTRODUCTION

1 GENERAL

The use of fiber-reinforced plastics for the manufacture of pressure vessels presents unique materials considerationsin the design, fabrication, and testing of these vessels. Metallic vessels, being made from materials which are normallyisotropic and ductile, are designed by using well-established allowable stresses based on measured tensile and ductilityproperties. In contrast, fiber-reinforced plastics are usually anisotropic and the physical properties are dependent uponthe fabrication process, the placement and orientation of the reinforcement, and the resin matrix. It is the purpose of thisIntroduction to describe in a general way the criteria that were used in preparing Section X, Fiber-Reinforced PlasticPressure Vessels. A list of standards referenced in this Section is provided in Table 1.1.

2 MATERIALS

It is not possible to fabricate a reinforced plastic pressure vessel of a single basic material for which there is an ASTMspecification. The vessel parts are made up of various basic materials, such as fiber reinforcement and resin, which arejoined in the presence of a catalyst to create a composite material that is formed into a vessel or vessel part by a specifiedprocess. The composite material will often have directional properties which shall be considered in design. General spe-cifications for the basic materials (fiber reinforcement and resin) are stated, as are requirements for determination ofelastic properties for the composite material (laminate) produced. Elastic properties of specific laminates used in vesselfabrication are required when mandatory rules are used for vessel design. Metallic materials, when used in conjunctionwith reinforced fiber laminates, are required to meet ASME Boiler and Pressure Vessel Code specifications, Section VIII,Division 1. That Section must be used for the design, fabrication, quality control, and inspection of such metallic parts.However, for hydrostatic leakage testing, these metallic materials that complete the vessel are required to meet SectionX requirements.

3 DESIGN

3.1 GENERAL3.1.1 Adequacy of specific designs shall be qualified by one of the following methods:1

(a) Class I Design — qualification of a vessel design through the pressure testing of a prototype.

(b) Class II Design — mandatory design rules and acceptable testing by nondestructive methods.

(c) Class III Design— qualification of a vessel design through the pressure testing of a prototype, other specified testsof prototypes, mandatory design rules and acceptance testing by nondestructive methods.

3.1.2 Class I designs based on the qualification of a prototype vessel require that the minimum qualification pres-sure of the prototype be at least six2 times the design pressure. The maximum design pressure is limited to 150 psi(1 MPa) for bag-molded, centrifugally cast, and contact-molded vessels; 1,500 psi (10 MPa) for filament-wound vessels;and 3,000 psi (20 MPa) for filament-wound vessels with polar boss openings.

3.1.3 Class II designs based on mandatory design rules and acceptance testing must comply with Article RD-11 andArticle RT-6. The maximum design pressure allowed under this procedure shall be as specified in RD-1120.

3.1.4 Class III designs include the qualification of a prototype with the minimum qualification pressure of the pro-totype to be at 2.25 times the design pressure for carbon fiber vessels, and 3.5 times the design pressure for glass fibervessels. Hybrid designs using more than one type of fiber are covered in 8-400.7. The maximum design pressure is lim-ited to 15,000 psi (103 MPa). The minimum design pressure shall be not less than 3,000 psi (20.7 MPa).

1 These three methods shall not be intermixed.2 An exception to this six times factor is applicable to vessels per (Filament Winding — Polar Boss Openings Only).

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