technical committee on multiple burner boilers

Technical Committee on Single Burner Boilers

AGENDA

Web/Teleconference Only 1. Chair’s welcome, call to order, and opening remarks at 9:00 am EST. 2. Roll call of Committee Members and Guests 3. Approval of Minutes from the April 6, 2010 teleconference meeting. See

www.nfpa.org/85. 4. Staff Liaison Report A. Committee membership update (For the period March 5, 2010 – Feb. 5, 2013)

Name Category Change Date Dennis Szabo I (Alt. to P. Willse) Resign 3/21/2011 Robert Koehler I (Principal) Resign 8/13/2011 Carlton Bosfield U (Principal) Resign 12/20/2011 Mark Ratcliffe SE (Principal) Resign 1/6/2012 David Paul Cannon SE (Principal) Appoint 3/1/2011 Jeff Breidenbach I (Principal) Appoint 8/9/2011 Mark Mooney I (Alt to J. Breidenbach) Appoint 8/9/2011 Fedja Drndarevic E (Principal) Appoint 10/18/2011 James Franks I (Alt. to P. Willse) Appoint 8/9/2012 James Fondriest M (Alt. to G. Shrider) Appoint 10/29/2012

(Total Voting Members – 16; M=38%, SE=31%, U=13%; I=13%; E = 6%) B. Revision Cycle Review and timeline (Attachment A) 5. Old Business

A. BCS-MBB Aluminum Material Task Group. Task group chairman Franklin Switzer provided a presentation originally given at the BCS-FUN pre-First Draft meeting. (Attachment B) NFPA 54 has been revised to remove the reference to valves and strainers in paragraph 5.6.8.4 on metallic pipe fittings.

6. New Business A. Create First Revision of Chapter 5. The committee should review the Public

Input (Attachment C) and revise chapter 5 of NFPA 85 as appropriate. B. Review BCS-FUN actions. The committee members are asked to review the

actions of the Fundamentals committee (sent under separate cover) and bring forward any items warranting further dicussion.

C. Consistency with Fundamentals. Committee members are asked to review chapters 4 and 5 and bring forward any items that appear to be redundant or conflicting for further discussion.

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http://www.nfpa.org/85�

D. Glossary Update. The BCS-FUN committee deleted many definitions for terms not used in the mandatory text of NFPA 85. The committee should review the actions of the Fundamentals committee and determine if any definitions should be incorporated into annex material for single burner boilers.

E. Organization of Chapter 5. The committee should determine if there is any interest in restructuring the content of chapter 5.

F. API 538. API is developing a recommended practice on “industrial fired boilers for general refinery and petrochemical service.” In discussions with the BCS-FUN technical committee, it was reported that the document offers a guide to using the equivalency clause in section 1.5 of NFPA 85 to support designs specific to use in petrochemical applications. NFPA Staff has been unable to secure permission from API to distribute the draft document. Mr. Polagye, chair of the BCS correlating committee, is a member of the API committee and will notify NFPA Staff when a draft of API 538 is available for public review and comment.

G. NFPA Advisory Service. NFPA Staff recently received an inquiry about bypassing interlocks on single burner boilers:

“Recent changes to environmental permits have forced our facility's operations to become heavily dependent on the reliable operation of one particular boiler. As a result, we are currently evaluating options to ensure this boiler can operate safely and reliably while allowing minor repairs to be made online. The boiler of interest is approximately 10 years of age and is a single burner gas fired boiler (gas supply: refinery fuel gas). Unfortunately it is not equipped with redundant instrumentation and until redundancy can be established we are exploring alternatives which include interlock bypasses.”

NFPA Staff notes that chapter 5 is the only subject chapter to specifically prohibit bypassing interlocks (other than low water cutouts during blowdown and atomizing medium interlocks). Chapters 4 and 6 permit bypassing interlocks where the bypass is annunciated, logged, and governed by operating procedures. The committee should review paragraph 5.3.6.4 and determine if any revisions are appropriate.

7. Other Items? 8. Date/Location of Next Meeting. The Second Draft meeting must take place between

Nov. 15, 2013 and January 24, 2014. The BCS-FUN meeting is scheduled for Dec 4-6, 2013 in Atlanta, GA.

9. Adjournment.

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Attachment A: Fall 2014 Revision Cycle

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Process

StageProcess Step Dates for TC

Dates for TC

with CC

Public Input Closing Date* 1/4/2013 1/4/2013

Final date for TC First Draft Meeting 6/14/2013 3/15/2013

Posting of First Draft and TC Ballot 8/2/2013 4/26/2013

Final date for Receipt of TC First Draft ballot 8/23/2013 5/17/2013

Final date for Receipt of TC First Draft ballot ‐ recirc 8/30/2013 5/24/2013

Posting of First Draft for CC Meeting 5/31/2013

Final date for CC First Draft Meeting 7/12/2013

Posting of First Draft and CC Ballot 8/2/2013

Final date for Receipt of CC First Draft ballot 8/23/2013

Final date for Receipt of CC First Draft ballot ‐ recirc 8/30/2013

Post Final First Draft for Public Comment 9/6/2013 9/6/2013

Public Comment closing date 11/15/2013 11/15/2013

Final Date to Publish Notice of Consent Documents (Documents

That Received No Comments)11/22/2013 11/22/2013

Appeal Closing Date for Consent Documents (15 Days) (Documents

That Received No Comments)12/7/2013 12/7/2013

Final date for TC Second Draft Meeting 5/2/2014 1/24/2014

Posting of Second Draft and TC Ballot 6/13/2014 3/7/2014

Final date for Receipt of TC Second Draft Ballot 7/7/2014 3/28/2014

Final date for receipt of TC Second Draft ballot ‐ recirc 7/14/2014 4/4/2014

Posting of Second Draft for CC Mtg 4/11/2014

Final date for CC Second Draft Meeting 5/23/2014

Posting of Second Draft for CC Ballot 6/13/2014

Final date for Receipt of CC Second Draft ballot 7/7/2014

Final date for Receipt of CC Second Draft ballot ‐ recirc 7/14/2014

Post Final Second Draft for NITMAM Review 7/18/2014 7/18/2014

Notice of Intent to Make a Motion (NITMAM) Closing Date 8/22/2014 8/22/2014

Posting of Certified Amending Motions and Consent Documents 10/17/2014 10/17/2014Appeal Closing Date for Consent Documents (15 Days) 11/1/2014 11/1/2014SC Issuance Date for Consent Documents (25 Days) 11/11/2014 11/11/2014

Tech Session Association Meeting for Documents with CAMs 6/22‐25/2015 6/22‐25/2015

Appeal Closing Date for Documents with CAMs (20 Days) 7/15/2015 7/15/2015SC Issuance Dates for Documents with CAMs 8/27/2015 8/27/2015

Comment Stage

(Second Draft)

Tech Session

Preparation

(& Issuance)

Appeals and

Issuance

2014 FALL REVISION CYCLE

Public Input

Stage

(First Draft)

*Public Input Dates may vary according to documents and schedules for Revision Cycles may change. Please check the NFPA Website for the most up‐to‐date information on

Public Input Closing Dates and schedules at www.nfpa.org/document # (i.e. www.nfpa.org/101) and click on the Next Edition tab

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Attachment B: F. Switzer Presentation

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NFPA 54

Aluminum or Not Aluminum

Task Group Membership

• 18 Members

• Users (4), Manufacturers (7), Insurance (1), Installers (3), Special Expert (2), Consumer (1)Consumer (1)

• NFPA (7), ASME (3), CSA (3)

• 39+ voting seats on Various Codes and Standards

Statement of issue

• Currently NFPA 54 states by inclusion that aluminum threads shall not for a gas seal.

• Currently NFPA 85, 86, & 87 state that materials of components shall followmaterials of components shall follow NFPA 54’s material recommendations.

NATIONAL FUEL GAS CODENFPA 54 - 1980

• PART 2• GAS PIPING SYSTEM DESIGN, MATERIALS AND COMPONENTS

– 2.6 Acceptable Piping Materials and Joining Methods.• 2.6.8 Metallic Piping Joints and Fittings: The type of piping joint used shall be suitable

for the pressure-temperature conditions and shall be selected giving consideration to joint tightness and mechanical strength under the service conditions. The joint shall be able to sustain the maximum end force due to the internal pressure and any additional forces due to temperature expansion or contraction, vibration, fatigue or to the weight of the pipe and its contents.p p

– a. Pipe joints shall be threaded, flanged or welded, and nonferrous pipe may also be soldered or brazed with materials having a melting point in excess of 1,000 F. Threaded joints shall not be used in annealed, tempered aluminum pipe.

– b. Tubing joints shall either be made with approved gas tubing fittings or be soldered or brazed with a materials having a melting point in excess of 1,000 F. Metallic ball sleeve compression type tubing fittings shall not be used for this purpose.

– c. Expanded joints shall be used only in systems constructed from nonferrous pipe and tubing where experience oc tests have demonstrated that the joint is suitable for the conditions and where adequate provisions are made in the design to prevent separation of the joints.

– d. Approved couplings and proprietary type joints may be used within the manufacturer's pressure-temperature recommendations, provided adequate provision is made to prevent separation of the joint due to vibration, fatigue and thermal expansion "or contraction.

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NATIONAL FUEL GAS CODENFPA 54 - 1980

• Continued– e. Metallic fittings (except valves, strainers or filters) shall be steel, brass or malleable

and cast iron or ductile iron when used with steel or wrought-iron pipe; shall be copper or brass when used with copper or brass pipe; and shall be aluminum alloy when used with aluminum alloy pipe.

» 1. When approved by the authority having jurisdiction, special fittings, such as saddle tees and gland-type compression couplings, may be used to connect steel or wrought-iron pipe if adequately braced so that neither the gas pressure nor external physical damage will force the joint apart.

» 2. Cast-iron fittings (including valves, strainers and filters) in sizes 6 inches and larger may be used to connect steel and wrought-iron pipe when approved by the authority y g p p pp y yhaving jurisdiction.

» 3. Cast-iron fittings in sizes 4 inches and larger shall not be used indoors unless approved by the authority having jurisdiction.

» 4. Cast-iron fittings and zinc-aluminum valves and fittings shall not be used in systems containing flammable gas-air mixtures.

» 5. Cast-iron flanges may be used.– Fittings in copper or brass piping systems, if exposed to soil, shall be made of bronze, copper

or brass containing not less than 80 percent copper.– Approved flared, flareless or compression type tubing fittings can be used provided they meet

the manufacturer's pressure-temperature recommendations for the fittings and the service conditions anticipated, such as vibration, fatigue and thermal expansion or contraction.

– f. Bushings: Cast-iron or plastic bushings, orange-peel bull plugs, orange-peel swages and fish tails shall not be used.

– g. Joint Compounds: Joint compounds (pipe dope) shall be resistant to the action of liquefied petroleum gas or to any other chemical constituents of the gases to be conducted through the piping.

NATIONAL FUEL GAS CODEANSI Z223.1-1984

NFPA 54-1984• 2.6.8 Metallic Piping Joints and Fittings: The type of piping joint used shall be suitable

for the pressure-temperature conditions and shall be selected giving consideration to joint tightness and mechanical strength under the service conditions. The joint shall be able to sustain the maximum end force due to the internal pressure and any additional forces due to temperature expansion or contraction, vibration, fatigue or to the weight of the pipe and its contents.

– a. Pipe Joints: Pipe joints shall be threaded, flanged or welded, and nonferrous pipe may also be brazed with materials having a melting point in excess of 1,000 F. Brazing alloys shall not contain phosphorous.Th d d j i t h ll t b d i l d t d l i i– Threaded joints shall not be used in annealed, tempered aluminum pipe.

– b. Tubing Joints: Tubing joints shall either be made with I approved gas tubing fittings or be brazed with a material having a melting point in excess of 1,000 F. Brazing alloys shall not contain phosphorous. Metallic ball sleeve compression type tubing fittings shall not be used for this purpose.

– c. Flared Joints: Flared joints shall be used only in systems constructed from nonferrous pipe and tubing where experience or tests have demonstrated that the joint is suitable for the conditions and where adequate provisions are made in the design to prevent separation of the joints.

– d. Couplings and Proprietary Joints: Approved couplings and proprietary type joints may be used within the manufacturer's pressure-temperature recommendations, provided adequate provisions made to prevent separation of the joint due to vibration, fatigue and thermal expansion or contraction.


NFPA 54-1984– e. Metallic Fittings: Metallic fittings (except valves, strainers or filters) shall be steel, brass or

malleable and cast iron or ductile iron when used with steel or wrought-iron pipe; shall be copper or brass when used with copper or brass pipe; and shall be aluminum alloy when used with aluminum alloy pipe.

• 1. When approved by the authority having jurisdiction, special fittings, such as saddle tees and gland-type compression couplings, may be used to connect steel or wrought-iron pipe if adequately braced so that neither the gas pressure nor external physical damage will force the joint apart.

• 2. Cast-iron fittings (including valves, strainers and filters) in sizes 6 inches and larger may be used to connect steel and wrought-iron pipe when approved by the authority having jurisdiction.

• 3. Cast-iron fittings in sizes 4 inches and larger shall not be used indoors unless approved by the authority having jurisdiction.authority having jurisdiction.

• 4. Cast-iron fittings and zinc-aluminum valves and fittings shall not be used in systems containing flammable gas-air mixtures.

• 5. Cast-iron flanges may be used.• 6. Fittings in copper or brass piping systems, if exposed to soil, shall be made of bronze, copper or

brass containing not less than 80 percent copper.• 7. Approved flared, flareless or compression (other than metallic ball sleeve) type tubing fittings may

be used provided they meet the manufacturer's pressure-temperature recommendations for the fittings and the service conditions anticipated, such as vibration, fatigue and thermal expansion or contraction.

– f. Bushings: Cast-iron or plastic bushings, orange-peel bull plugs, orange-peel swages and fish tails shall not be used.

– g. Joint Compounds: Joint compounds (pipe dope) shall be resistant to the action of liquefied petroleum gas or to any other chemical constituents of the gases to be conducted through the piping.


NFPA 54-1988• 2.6.8 Metallic Piping Joints and Fittings: The type of piping joint used

shall be suitable for the pressure-temperature conditions and shall be selected giving consideration to joint tightness and mechanical strength under the service conditions. The joint shall be able to sustain the maximum end force due to the internal pressure and any additional forces due to temperature expansion or contraction, vibration, fatigue, or to the weight of the pipe and its contents.

– a. Pipe Joints: Pipe joints shall be threaded, flanged, or welded*, and nonferrous pipe may also be brazed* with materials having a melting point in excess of 1,000 F. Brazing alloys shall not contain phosphorus.

– b. Tubing Joints: Tubing joints shall either be made with approved gas tubing fittings or be brazed* with a material having a melting point in excess of 1,000 F. Brazing alloys shall not contain phosphorus.

– c. Flared Joints: Flared joints shall be used only in systems constructed from nonferrous pipe and tubing where experience or tests have demonstrated that the joint is suitable for the conditions and where adequate provisions are made in the design to prevent separation of the joints.

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NFPA 54-1988– d. Metallic Fittings (Including Valves, Strainers, Filters):

• 1. Threaded fittings in sizes larger than 4-inches shall not be used unless acceptable to the authority having jurisdiction.

• 2. Fittings used with steel or wrought iron pipe shall be steel, brass, bronze, malleable iron, ductile iron, or cast iron.

• 3. Fittings used with copper or brass pipe shall be copper, brass, or bronze.• 4. Fittings used with aluminum alloy pipe shall be of aluminum alloy.• 5. Cast Iron Fittings• ° Flanges may be used.g y• ° Bushings shall not be used.• Fittings shall not be used in systems containing flammable gas-air mixtures.• ° Fittings in sizes 4-inches and larger shall not be used indoors unless approved by the

authority having jurisdiction.• ° Fittings in sizes 6-inches and larger shall not be used unless approved by the authority

having jurisdiction.• 6. Brass, Bronze, or Copper Fittings: Fittings, if exposed to soil, shall have a minimum

80 percent copper content.


NFPA 54-1988• 7. Aluminum Alloy Fittings: Threads shall not form the joint seal.• 8. Zinc-Aluminum Alloy Fittings: Fittings shall not be used in systems containing

flammable gas-air mixtures.• 9. Special Fittings: Fittings such as couplings, proprietary type joints, saddle tees,

gland-type compression fittings, flared, flareless, or compression type tubing fittings may be used provided they are:

– 1) used within the fitting manufacturer's pressure-temperature recommendations; – 2) used within the service conditions anticipated with respect to vibration, fatigue, thermal

expansion, or contraction; – 3) installed or braced to prevent separation of the joint by gas pressure or external physical ) p p j y g p p y

damage; and – 4) acceptable to the authority having jurisdiction.

Los Angeles Convention CenterLos Angeles, California

May 16-18, 1988

(Log #98)54-9 - (2.6.8.e): RejectSUBMITTER: Adrian V. Cavestany, Raypak, Inc.COMMENT ON PROPOSAL NO.: 54-14

RECOMMENDATION: The text should read:"Metallic f i t t i n g s ("except" valves, strainer, f i l t e r s ) : "

NOTNOT"Metallic f i t t i n g s ('including" valves, strainer, f i l t e r s ) : “

SUBSTANTIATION: I believe this is just a oversight, but a rather serious one. The intent is not to change the specifications but to reorganize the provision For clarification purposes.

COMMITTEE ACTION: Reject.

COMMITTEE COMMENT: The Committee believes that the material requirements for f i t t i n g s should also apply to valves, strainers, and f i t t i n g s .

NFPA 54National Fuel Gas Code

1999 Edition

2.6.8 Metallic Piping Joints and Fittings. The type of piping joint used shall be suitable for the pressure-temperature conditions and shall be selected giving consideration to joint tightness and mechanical strength under the service conditions. The joint shall be able to sustain the maximum end force due to the internal pressure and any additional forces due to temperature expansion or contraction, vibration, fatigue, or the weight of the pipe and its contents.

(a) *Pipe Joints. Pipe joints shall be threaded, flanged, or welded, and nonferrous pipe shall be permitted to also be brazed with materials having a melting point in

f 1000°F (538°C) B i ll h ll t t i th 0 05 texcess of 1000°F (538°C). Brazing alloys shall not contain more than 0.05 percent phosphorus.(b) Tubing Joints. Tubing joints shall either be made with approved gas tubing fittings or be brazed with a material having a melting point in excess of 1000°F (538°C). Brazing alloys shall not contain more than 0.05 percent phosphorus.(c) Flared Joints. Flared joints shall be used only in systems constructed from nonferrous pipe and tubing where experience or tests have demonstrated that the joint is suitable for the conditions and where provisions are made in the design to prevent separation of the joints.

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1999 Edition

(d) Metallic Fittings (Including Valves, Strainers, Filters).(1) Threaded fittings in sizes larger than 4 in. (100 mm) shall not be used unless acceptable to the authority having jurisdiction.(2) Fittings used with steel or wrought-iron pipe shall be steel, brass, bronze, malleable iron, ductile iron, or cast iron.(3) Fittings used with copper or brass pipe shall be copper, brass, or bronze.(4) Fittings used with aluminum alloy pipe shall be of aluminum alloy. (5) Cast-Iron Fittings.

a. Flanges shall be permitted to be used.g pb. Bushings shall not be used.c. Fittings shall not be used in systems containing flammable gas–air mixtures.d. Fittings in sizes 4 in. (100 mm) and larger shall not be used indoors unless approved by the authority having jurisdiction. e. Fittings in sizes 6 in. (150 mm) and larger shall not be used unless approved by the authority having jurisdiction.


1999 Edition(6) Brass, Bronze, or Copper Fittings. Fittings, if exposed to soil, shall have a minimum 80 percent copper content.(7) Aluminum Alloy Fittings. Threads shall not form the joint seal.(8) Zinc–Aluminum Alloy Fittings. Fittings shall not be used in systems containing flammable gas–air mixtures.(9) Special Fittings. Fittings such as couplings, proprietary type joints, saddle tees, gland-type compression fittings, and flared, flareless, or compression-type tubing fittings shall be permitted to be used provided they are

(1) used within the fitting manufacturers’ pressure-temperature recommendations; (2) used within the service conditions anticipated with respect to vibration fatigue thermal(2) used within the service conditions anticipated with respect to vibration, fatigue, thermal expansion, or contraction; (3) installed or braced to prevent separation of the joint by gas pressure or external physical damage; and (4) acceptable to the authority having jurisdiction.


2002 Edition

5.6.8.4 Metallic Fittings (Including Valves, Strainers, Filters).Metallic fittings shall comply with the following:

(1) Threaded fittings in sizes larger than 4 in. (100 mm) shall not be used unless acceptable to the authority having jurisdiction.(2) Fittings used with steel or wrought-iron pipe shall be steel, brass, bronze, malleable iron, or cast iron.(3) Fittings used with copper or brass pipe shall be copper, brass, or bronze.(4) Fittings used with aluminum alloy pipe shall be of aluminum alloy(4) Fittings used with aluminum alloy pipe shall be of aluminum alloy.(5) Cast-Iron Fittings. Cast-iron fittings shall comply with the following:

(a) Flanges shall be permitted.(b) Bushings shall not be used.(c) Fittings shall not be used in systems containing flammable gas–air mixtures.(d) Fittings in sizes 4 in. (100 mm) and larger shall not be used indoors unless approved by the authority having jurisdiction.(e) Fittings in sizes 6 in. (150 mm) and larger shall not be used unless approved by the authority having jurisdiction.


2002 Edition

5.6.8.4 Metallic Fittings (Including Valves, Strainers, Filters). (Con’t)(6) Aluminum Alloy Fittings. Threads shall not form the joint seal.(7) Zinc–Aluminum Alloy Fittings. Fittings shall not be used in systems containing flammable gas–air mixtures.(8) Special Fittings. Fittings such as couplings, proprietary-type joints, saddle tees, gland-type compression fittings, and flared, flareless, or compression-type tubing fittings shall be

(1) used within the fitting manufacturers’ pressure temperature recommendations; (2) d ithi th i diti ti i t d ith t t ib ti f ti th l(2) used within the service conditions anticipated with respect to vibration, fatigue, thermal expansion, or contraction; (3) installed or braced to prevent separation of the joint by gas pressure or external physical damage; and (4) acceptable to the authority having jurisdiction.

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NFPA® 54 / ANSI Z223.1National Fuel Gas Code

2009 Edition

5.6.8.4 Metallic Fittings (Including Valves, Strainers, Filters).Metallic fittings shall comply with the following:

(1) Threaded fittings in sizes larger than 4 in. (100 mm) shall not be used unless acceptable to the authority having jurisdiction.(2) Fittings used with steel or wrought-iron pipe shall be steel, brass, bronze, malleable iron, or cast iron.(3) Fittings used with copper or brass pipe shall be copper, brass, or bronze.(4) Fittings used with aluminum alloy pipe shall be of aluminum alloy(4) Fittings used with aluminum alloy pipe shall be of aluminum alloy.(5) Cast-Iron Fittings. Cast-iron fittings shall comply with the following:



2009 Edition

5.6.8.4 Metallic Fittings (Including Valves, Strainers, Filters). (Con’t.)(6) Aluminum Alloy Fittings. Threads shall not form the joint seal.(7) Zinc–Aluminum Alloy Fittings. Fittings shall not be used in systems containing flammable gas–air mixtures.(8) Special Fittings. Fittings such as couplings, proprietary-type joints, saddle tees, gland-type compression fittings, and flared, flareless, or compression-type tubing fittings shall be as follows:

(a) Used within the fitting manufacturer’s pressure–temperature recommendations(b) Used within the service conditions anticipated with respect to vibration, fatigue, thermal expansion, or contraction(c) Installed or braced to prevent separation of the joint by gas pressure or external physical damage(d) Acceptable to the authority having jurisdiction


2012 Edition

• 5.6.8.4 Metallic Fittings. Metallic fittings shall comply with the following:(1) Threaded fittings in sizes larger than 4 in. (100 mm) shall not be used unless acceptable to the authority having jurisdiction.(2) Fittings used with steel or wrought-iron pipe shall be steel, brass, bronze, malleable iron, or cast iron.(3) Fittings used with copper or brass pipe shall be copper, brass, or bronze.(4) Fittings used with aluminum alloy pipe shall be of aluminum alloy.(5) Cast-Iron Fittings Cast-iron fittings shall comply with the following:(5) Cast-Iron Fittings. Cast-iron fittings shall comply with the following:


(6) Aluminum Alloy Fittings. Threads shall not form the joint seal.(7) Zinc–Aluminum Alloy Fittings. Fittings shall not be used in systems containing flammable gas–air mixtures.


2012 Edition

5.6.8.4 Metallic Fittings. Metallic fittings shall comply with the following:(Con’t.)

(8) Special Fittings. Fittings such as couplings, proprietary-type joints, saddle tees, gland-type compression fittings, and flared, flareless, or compression-type tubing fittings shall be as follows:

(a) Used within the fitting manufacturer’s pressure–temperature recommendations(b) Used within the service conditions anticipated with respect to vibration, fatigue, thermal expansion, or contraction(c) Installed or braced to prevent separation of the joint by gas pressure or external(c) Installed or braced to prevent separation of the joint by gas pressure or external physical damage(d) Acceptable to the authority having jurisdiction

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Attachment C: Public Input

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Public Input No. 212-NFPA 85-2013 [ Section No. 4.11.7.2 ]

4.11.7.2

For single burner boilers, the boiler control system shall be permitted to be combined with the burnermanagement system under one of the following conditions:

(1)

(2) If the combined boiler control and burner management system is specifically listed or labeledfor the application

(3) * If the processor and associated I/O have been certified by a Notified Body or qualifiedindependent organization to be at least SIL 2 capable according to IEC 61508 and the processorensures that the Burner Management System logic is isolated from other logic and the related data ofthe Burner Management System program are protected from being affected unintentionally by data ofother user programs.

Statement of Problem and Substantiation for Public Input

See PI 213. Modern hardware and software control systems with a minimum of SIL 2 capability have drastically reduced the number of undetected unsafe failures. Furthermore, modern systems separate the system’s logic to prohibit unintentional modification of the safety logic. The combination of better fault coverage and logic isolation has eliminated the need for independent logic and I/O in single burner boiler systems.

Submitter Information Verification

Submitter Full Name: Ted Jablkowski

Organization: Fives North American Combustio

Submittal Date: Thu Jan 03 14:17:22 EST 2013

Copyright Assignment

I, Ted Jablkowski, hereby irrevocably grant and assign to the National Fire Protection Association (NFPA) all and full rights in copyright in thisPublic Input (including both the Proposed Change and the Statement of Problem and Substantiation). I understand and intend that I acquire norights, including rights as a joint author, in any publication of the NFPA in which this Public Input in this or another similar or derivative form isused. I hereby warrant that I am the author of this Public Input and that I have full power and authority to enter into this copyright assignment.

By checking this box I affirm that I am Ted Jablkowski, and I agree to be legally bound by the above Copyright Assignment and the terms andconditions contained therein. I understand and intend that, by checking this box, I am creating an electronic signature that will, upon mysubmission of this form, have the same legal force and effect as a handwritten signature

* If the fuel-air ratio is controlled externally from the boiler control system

National Fire Protection Association Report http://localhost:8084/TerraViewWeb/ContentFetcher?commentParams=(...

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Public Input No. 213-NFPA 85-2013 [ New Section after A.4.11.7.2(1) ]

A.4.11.7.2 (3) Use of a logic system that has been self-certified is not permitted. Isolationbetween the Burner Management System and the other logic can be accomplish by usingseparate processors or by selecting a single processor that ensures isolation throughthe use of an isolated programming area protected by locks or passwords.


See PI 212. Modern hardware and software control systems with a minimum of SIL 2 capability have drastically reduced the number of undetected unsafe failures. Furthermore, modern systems separate the system’s logic to prohibit unintentional modification of the safety logic. The combination of better fault coverage and logic isolation has eliminated the need for independent logic and I/O in single burner boiler systems.

Related Public Inputs for This Document

Related Input Relationship

Public Input No. 212-NFPA 85-2013 [Section No. 4.11.7.2]






I, Ted Jablkowski, hereby irrevocably grant and assign to the National Fire Protection Association (NFPA) all and full rights incopyright in this Public Input (including both the Proposed Change and the Statement of Problem and Substantiation). Iunderstand and intend that I acquire no rights, including rights as a joint author, in any publication of the NFPA in which this PublicInput in this or another similar or derivative form is used. I hereby warrant that I am the author of this Public Input and that I have fullpower and authority to enter into this copyright assignment.

By checking this box I affirm that I am Ted Jablkowski, and I agree to be legally bound by the above Copyright Assignmentand the terms and conditions contained therein. I understand and intend that, by checking this box, I am creating an electronicsignature that will, upon my submission of this form, have the same legal force and effect as a handwritten signature

National Fire Protection Association Report http://localhost:8084/TerraViewWeb/FormLaunch?id=/TerraView/Conten...

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Public Input No. 222-NFPA 85-2013 [ Section No. 5.2 ]

5.2 Purpose.

The purpose of this chapter shall be to establish minimum requirements for the design, installation,operation, and maintenance of single burner boilers, their fuel-burning systems, and related systemsto contribute to safe operation to the design operation and, in particular, to the prevention of furnaceexplosions.


The objective of this suggested change is to replace "safe operation" as it may not be unenforceable language.

Related Public Inputs for This Document

Related Input Relationship

Public Input No. 221-NFPA 85-2013 [Section No. 4.4.1.2]






I, Ted Jablkowski, hereby irrevocably grant and assign to the National Fire Protection Association (NFPA) all and full rights in copyright in thisPublic Input (including both the Proposed Change and the Statement of Problem and Substantiation). I understand and intend that I acquire norights, including rights as a joint author, in any publication of the NFPA in which this Public Input in this or another similar or derivative form isused. I hereby warrant that I am the author of this Public Input and that I have full power and authority to enter into this copyright assignment.

By checking this box I affirm that I am Ted Jablkowski, and I agree to be legally bound by the above Copyright Assignment and the terms andconditions contained therein. I understand and intend that, by checking this box, I am creating an electronic signature that will, upon mysubmission of this form, have the same legal force and effect as a handwritten signature


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Public Input No. 98-NFPA 85-2012 [ Section No. 5.3.2.6 ]

5.3.2.6

Gas piping material and system design shall be in accordance with NFPA 54, National Fuel GasCode (for gas piping inside industrial and institutional buildings), with ASME B31.1, Power Piping(for gas piping in power applications), or ASME B31.3, Process Piping (for gas piping in processapplications).

Additional Proposed Changes

File Name Description Approved

Hold_NFPA85BCS-SBB_5.3.2.6.pdf Held Comment 85-19


NOTE: This proposal appeared as Comment 85-19 (Log #10) which was held from the F10 ROC on Proposal 85-54. Aluminum alloy threaded valves should not be permitted due to their low melting point and they may become distorted when tightened.


Submitter Full Name: W. Scott Matz

Organization: Triconex Systems Inc.

Submittal Date: Mon Dec 10 13:28:07 EST 2012


I, W. Scott Matz, hereby irrevocably grant and assign to the National Fire Protection Association (NFPA) all and full rights in copyright in thisPublic Input (including both the Proposed Change and the Statement of Problem and Substantiation). I understand and intend that I acquire norights, including rights as a joint author, in any publication of the NFPA in which this Public Input in this or another similar or derivative form isused. I hereby warrant that I am the author of this Public Input and that I have full power and authority to enter into this copyright assignment.

By checking this box I affirm that I am W. Scott Matz, and I agree to be legally bound by the above Copyright Assignment and the terms andconditions contained therein. I understand and intend that, by checking this box, I am creating an electronic signature that will, upon mysubmission of this form, have the same legal force and effect as a handwritten signature


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Public Input No. 204-NFPA 85-2013 [ Section No. 5.3.4.1.3.1 ]

5.3.4.1.3.1*

Valve Where automatic valve -proving systems are installed, valve-proving shall be performed eitherafter every burner shutdown or prior to every burner light-off.


Clarify the requirement to prove igniter safety shutoff valves after every burner shutdown or prior to every burner light-off applies to systems with automatic valve proving systems. Because 5.3.4.1.3.1 is separated from the requirements of 5.3.4.1.3, it has lost the context of automatic valve proving systems. This paragraph has been interpreted to mean that igniter safety shutoff valves require valve proving limit switches to be installed. Such does not appear to be the intent of the committee when comparing to the main fuel safety shutoff valve requirements (5.3.2.3) in which it clearly states the main safety shutoff valves require a proof of closure switch.


Submitter Full Name: Gordon Gaetke

Organization: The Dow Chemical Company



I, Gordon Gaetke, hereby irrevocably grant and assign to the National Fire Protection Association (NFPA) all and full rights in copyright in thisPublic Input (including both the Proposed Change and the Statement of Problem and Substantiation). I understand and intend that I acquire norights, including rights as a joint author, in any publication of the NFPA in which this Public Input in this or another similar or derivative form isused. I hereby warrant that I am the author of this Public Input and that I have full power and authority to enter into this copyright assignment.

By checking this box I affirm that I am Gordon Gaetke, and I agree to be legally bound by the above Copyright Assignment and the terms andconditions contained therein. I understand and intend that, by checking this box, I am creating an electronic signature that will, upon mysubmission of this form, have the same legal force and effect as a handwritten signature


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Public Input No. 100-NFPA 85-2012 [ Section No. 5.3.6.4.3 ]

5.3.6.4.3

Interlocks shall not be bypassed manually at any time during normal operation. except as noted in5.3.6.4.3.1, unless the bypass is tagged and is controlled by procedure.

5.3.6.4.3.1

Interlocks shall be permitted to be bypassed as allowed by 5.3.6.4, 5.4.3.2.1 (4), and 5.4.3.3.1 (4).



Hold_NFPA85BCS-SBB_5.3.6.4.3Dressel.pdf Held Comment 85-22


NOTE: This proposal appeared as Comment 85-22 (Log #15) which was held from the F10 ROC on Proposal 85-56. As written, the referenced paragraphs only allow bypassing on single burner boilers for low water level interlocks (Sections 5.3.6.4.1 and 5.3.6.4.2) and atomizing medium interlocks (Sections 5.4.3.2.1(4) and 5.4.3.3.1(4). No allowance is given to service, maintain or replace a flame scanner or other interlock. In addition, both Fundamentals - Chapter 4 (Section 4.5.4) and MBB-Chapter 6 (Section 6.4.2.2.13) allow bypassing of interlocks under certain conditions.


Submitter Full Name: Dale Dressel

Organization: Solutia Inc.



I, Dale Dressel, hereby irrevocably grant and assign to the National Fire Protection Association (NFPA) all and full rights in copyright in thisPublic Input (including both the Proposed Change and the Statement of Problem and Substantiation). I understand and intend that I acquire norights, including rights as a joint author, in any publication of the NFPA in which this Public Input in this or another similar or derivative form isused. I hereby warrant that I am the author of this Public Input and that I have full power and authority to enter into this copyright assignment.

By checking this box I affirm that I am Dale Dressel, and I agree to be legally bound by the above Copyright Assignment and the terms andconditions contained therein. I understand and intend that, by checking this box, I am creating an electronic signature that will, upon mysubmission of this form, have the same legal force and effect as a handwritten signature


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Allow testing and maintenance of interlocks for single burner boilers, since testing andmaintenance is allowed for multiple burner boilers. Proposed text is based on paragraphs6.4.2.2.3, 6.4.2.2.12, and 6.4.2.2.13:

5.3.6.4.3

Interlocks shall not be bypassed manually at any time during normal operation except for thefollowing purposes:

(1) Testing and maintenance shall be performed to keep the interlock system functioning asdesigned .

(2) The capability for preventive maintenance shall be provided.

(3) The design shall not require any deliberate “defeating” of an interlock to start or operateequipment. Whenever a required interlock device is removed temporarily from service, it shall benoted in the log and annunciated. Other means shall be substituted to supervise this interlockfunction.

5.3.6.4.3.1

Interlocks shall be permitted to be bypassed as allowed by 5.3.6.4, 5. 3.6. 4.3 , 5 .4.3. 2.1 (4), and5.4.3.3.1 (4).



Hold_NFPA85BCS-SBB_5.3.6.4.3.pdf Held Comment 85-21


NOTE: This proposal appeared as Comment 85-21 (Log #2) which was held from the F10 ROC on Proposal 85-56. Since testing and maintenance of interlocks is allowed for multiple burner boilers, the code should also allow for single burner boiler interlock bypass, to be consistent.In addition, there is no way to remove/replace/maintain most interlock devices without a shutdown of a burner/boiler while following NFPA 85 chapter 5 for single burner operation. Proper maintenance to interlock device is more likely to occur if means are provided to allow for such maintenance. Many users operate boilers for long periods without shutting down, and would welcome a method of on-line maintenance for interlock devices. This is especially true when a transmitter is used as the interlock device, or the interlock is voted among multiple devices. Also, many users have both single and multiple burner boilers, and they commonly request to use the same testing/maintenance procedures for single burner boilers as they use for multiple burner boilers.


Submitter Full Name: Michael Francis

Organization: Coen Company, Inc.



I, Michael Francis, hereby irrevocably grant and assign to the National Fire Protection Association (NFPA) all and full rights in copyright in thisPublic Input (including both the Proposed Change and the Statement of Problem and Substantiation). I understand and intend that I acquire norights, including rights as a joint author, in any publication of the NFPA in which this Public Input in this or another similar or derivative form isused. I hereby warrant that I am the author of this Public Input and that I have full power and authority to enter into this copyright assignment.

By checking this box I affirm that I am Michael Francis, and I agree to be legally bound by the above Copyright Assignment and the terms andconditions contained therein. I understand and intend that, by checking this box, I am creating an electronic signature that will, upon mysubmission of this form, have the same legal force and effect as a handwritten signature


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Public Input No. 54-NFPA 85-2012 [ Section No. 5.3.8 ]

5.3.8 Electrical Equipment.

5.3.8.1 *

All electrical equipment and wiring shall conform to NFPA 70 , National Electrical Code .

5.3.8.2

Special fuels or applications could require components for hazardous location and shall be reviewedduring the design of the system.


This section should be moved to Fundamentals as it applies to all boilers firing fossil fuels.


Submitter Full Name: Robert Eng

Organization: Hitachi Power Systems America,

Submittal Date: Mon Nov 26 14:32:38 EST 2012


I, Robert Eng, hereby irrevocably grant and assign to the National Fire Protection Association (NFPA) all and full rights in copyright in this PublicInput (including both the Proposed Change and the Statement of Problem and Substantiation). I understand and intend that I acquire no rights,including rights as a joint author, in any publication of the NFPA in which this Public Input in this or another similar or derivative form is used. Ihereby warrant that I am the author of this Public Input and that I have full power and authority to enter into this copyright assignment.

By checking this box I affirm that I am Robert Eng, and I agree to be legally bound by the above Copyright Assignment and the terms andconditions contained therein. I understand and intend that, by checking this box, I am creating an electronic signature that will, upon mysubmission of this form, have the same legal force and effect as a handwritten signature


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Move paragraph 5.3.8 to "Fundamentals" Section 4.10.

5.3. 8 Electrical Equipment.

5.3.8.1*

All electrical equipment and wiring shall conform to NFPA 70, National Electrical Code.

5.3.8.2

Special fuels or applications could require components for hazardous location and shall be reviewedduring the design of the system.


The requirement shall apply to all types of burners using Fuel Gas or Fuel Oil as the fuel source, not just Single Burner Boilers systems.



Organization: Hitachi Power Systems America, Ltd






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5.4.3.3.3 Starting Procedure.

The following procedural steps shall be followed:

(1) Shut off heavy oil to the system.

(2) Insert the mechanical atomizer.

(3) Bypass oil and atomizing medium interlocks. [See 5.4.3.3.1 (4).]

(4) Open the light oil supply into the system.

(5) Follow prefiring and light-off cycles described in Section 5.5.

(6) Set combustion control at the light-off rate.

(7) When steam pressure has reached the point required for heating and atomizing the oil, shutdown in accordance with the normal shutdown procedure as described in Section 5.5.

(8) Shut off the light oil supply to the system.

(9) Remove the mechanical atomizer.

(10) Insert the steam atomizer.

(11) Make the oil and atomizing medium interlocks operable by removing bypasses.

(12) Open the heavy light oil supply to the system.

(13) Continue the boiler start-up sequence.


This section covers light oil requirements


Submitter Full Name: W. Matz

Organization: Invensys Process Systems

Submittal Date: Thu Dec 13 16:51:30 EST 2012


I, W. Matz, hereby irrevocably grant and assign to the National Fire Protection Association (NFPA) all and full rights in copyright in this PublicInput (including both the Proposed Change and the Statement of Problem and Substantiation). I understand and intend that I acquire no rights,including rights as a joint author, in any publication of the NFPA in which this Public Input in this or another similar or derivative form is used. Ihereby warrant that I am the author of this Public Input and that I have full power and authority to enter into this copyright assignment.

By checking this box I affirm that I am W. Matz, and I agree to be legally bound by the above Copyright Assignment and the terms andconditions contained therein. I understand and intend that, by checking this box, I am creating an electronic signature that will, upon mysubmission of this form, have the same legal force and effect as a handwritten signature


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5.4.3.3.3 Starting Procedure.

The following procedural steps shall be followed:

(1) Shut off heavy oil to the system.

(2) Insert the mechanical atomizer.

(3) Bypass oil and atomizing medium interlocks. [See 5.4.3.3.1 (4).]

(4) Open the light oil supply into the system.

(5) Follow prefiring and light-off cycles described in Section 5.5.

(6) Set combustion control at the light-off rate.

(7) When steam pressure has reached the point required for heating and atomizing for atomizingthe oil, shut down in accordance with the normal shutdown procedure as described in Section5.5.

(8) Shut off the light oil supply to the system.

(9) Remove the mechanical atomizer.

(10) Insert the steam atomizer.

(11) Make the oil and atomizing medium interlocks operable by removing bypasses.

(12) Open the heavy oil supply to the system.

(13) Continue the boiler start-up sequence.


This section refers to light oil and does not require heating.


Submitter Full Name: W. Matz

Organization: Invensys Process Systems

Submittal Date: Thu Dec 13 17:10:35 EST 2012


I, W. Matz, hereby irrevocably grant and assign to the National Fire Protection Association (NFPA) all and full rights in copyright in this PublicInput (including both the Proposed Change and the Statement of Problem and Substantiation). I understand and intend that I acquire no rights,including rights as a joint author, in any publication of the NFPA in which this Public Input in this or another similar or derivative form is used. Ihereby warrant that I am the author of this Public Input and that I have full power and authority to enter into this copyright assignment.

By checking this box I affirm that I am W. Matz, and I agree to be legally bound by the above Copyright Assignment and the terms andconditions contained therein. I understand and intend that, by checking this box, I am creating an electronic signature that will, upon mysubmission of this form, have the same legal force and effect as a handwritten signature


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5.7.2 Required Equipment.

The following equipment shall be required:

(1) A burner that is capable of firing the two fuels simultaneously during the transfer period

(2) A combustion control system that is capable of performing the following functions:

(a) Proportioning fuel flow for each fuel individually

(b) Limiting total fuel input to the maximum capacity of the boiler

(c) Controlling a minimum airflow rate

(d) Controlling minimum input rates of each fuel

(e) Providing a stable return to design air-fuel ratio after the trip or shutdown of either fuel

(3) A fuel transfer mode that includes the following:

(a) A gas-firing mode in which oil cannot be fired

(b) An oil-firing mode in which gas cannot be fired

(c) A gas-oil-firing mode that permits simultaneous firing of both fuels, provided all interlocksfor both fuels are satisfied, including light-off position for both fuel valves

(d) A control device, transfer timer, and an alarm for 5.7.2(3)(c), to limit continuous operationin this mode

(4) A safety interlock system with the following capabilities:

(a) Meets the requirements of 5.3.6 for each fuel being fired

(b) Provides , on an interlock action peculiar to only one of the fuels an independentinterlock to each fuel being fired, that this particular a fuel automatically shuts down withoperation continuing on the unaffected fuel in a stable manner; shutdown of both fuelspermitted as determined by their interlocks

(c) Provides that both the first and second fuels be introduced with their flow control valves inlight-off positions

(d) Provides an interlock action that will trip either fuel should its respective flow control valveleave a predetermined setting during fuel transfer

(e) Provides for the introduction of the second fuel without requiring a boiler purge

(f) Requires a manual reset following any interlock shutdown

(g) Prohibits the simultaneous light-off of both fuels

(h) Provides detector(s) to supervise any of the following conditions:

i. Igniter flame as permitted by igniter class

ii. Gas firing

iii. Oil firing

iv. Combined gas and oil firing

(i) Burner flame detectors shall be permitted to supervise multiple fuels.


The old text is very confusing to the Reader.


Submitter Full Name: SINMING KWONG

Organization: EMERSON PROCESS MANAGEMENT PWS

Submittal Date: Fri May 25 10:15:27 EDT 2012


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Public Input No. 65-NFPA 85-2012 [ Section No. A.5.3.4.6.3 ]

A.5.3.4.6.3

Analyzers could contain heated elements that exceed the autoignition temperature of many fuels.Zirconium oxide analyzers, commonly used for oxygen analysis, contain an element heated to 1300°F(704°C). This high temperature element presents a potential ignition source to unburned fuel thatcould be present at startup. Some analyzers are designed to protect the sampled space from theignition source by providing flashback protection (such as flame arresters in the sample gas path).Analyzers with that protection or that are not heated to autoignition temperature do not present anignition hazard It should be noted, however, that flame arrestors may only work below a certaintemperature which is usually not quantified, may not quench a flame as well once it becomescorroded and may induce a speed of response delay that could be detrimental to the control orprotection strategy. Consideration should be given to powering down analyzers during boiler or fueltrip situations if they can exceed the autoignition temperature of the fuel being fired .


Discussions with a major supplier of zirconium oxide based oxygen analyzers revealed the stated limitations of flame arrestors and those limitations need to be understood by users of the Code. This same change is being proposed against identical annex material in A.5.3.4.6.3, A.6.4.2.3.4.6(2) and A.7.6.2.1.1(10).


Submitter Full Name: Dale Evely

Organization: Southern Company Services, Inc

Submittal Date: Thu Nov 29 09:21:03 EST 2012


I, Dale Evely, hereby irrevocably grant and assign to the National Fire Protection Association (NFPA) all and full rights in copyright in this PublicInput (including both the Proposed Change and the Statement of Problem and Substantiation). I understand and intend that I acquire no rights,including rights as a joint author, in any publication of the NFPA in which this Public Input in this or another similar or derivative form is used. Ihereby warrant that I am the author of this Public Input and that I have full power and authority to enter into this copyright assignment.

By checking this box I affirm that I am Dale Evely, and I agree to be legally bound by the above Copyright Assignment and the terms andconditions contained therein. I understand and intend that, by checking this box, I am creating an electronic signature that will, upon mysubmission of this form, have the same legal force and effect as a handwritten signature


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Public Input No. 56-NFPA 85-2012 [ Section No. A.5.3.8.1 ]

A. 5 4 .3 1 .8 6 .1 1

Locations at which natural gas, propane, or fuel oil systems are installed in compliance with this codenormally are not considered hazardous locations for electrical equipment as defined in NFPA 70,National Electrical Code.


This requirement should apply to all boiler sections and be part of the Fundamentals section.



Organization: Hitachi Power Systems America,

Submittal Date: Mon Nov 26 14:45:32 EST 2012





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