itp - tanks -01

INSPECTION & TEST PLAN FORSTORAGE TANKS

EPCC-9 PAGE : 1 of 9

INSPECTION & TEST PLAN

FOR TANKS

(CR, IFR, EFR, DR)

ProjectClientConsultantContractorDoc No Ref Doc

INTEGRATED UTILITIES & OFFSITES PACKAGE

2 4.03.2013

1 04/04/2012Issued for Approval

Rev Date Purpose Prepared By Checked By Approved By Approved By



REVISION HISTORY

REV DATE DESCRIPTION

1 04.04.2012 048, INSPECTION & TEST PLAN FORSTORAGE TANKS

2 4.03.2013





SL ACTIVITYSUB CON FCIPL CEIL

EIL Type of Record to be maintained

CAT A CAT B

A PRIOR TO FABRICATTION

1 Acceptance Report of the tanks foundation WC W W HP RApplicable

Format

2 Incoming Material

a Documents WC W R HP R MTC / IMIR

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b Physical verification WC W W W S

3Welding Filler Material Approval/Qualification

aReview of Manufacturer’s TestCertificate/Documents

WC* R R HP R T C/IMIR

b Laboratory testing, if any

i) Carbon Steel WC W W R -- EIL Specs / Relevant Stds.

ii)Low Temperature Services WC W W HP -- EIL Specs / Relevant Stds.

4 WPS/PQR

a) Review of proposed procedureWC R R HP R

WPS/PQR Form

b) Testingi) Carbon Steel WC R R R R Lab. Test Report

c) Approval of Final WPS/PQR WC R R HP R WPS/PQR Form

5 a) Welder performance Qualification Test WC W W S R WPQ Parameter Sheet

b) Certification & approval of welders WC R R HP RWelder Certificate/ID Card

6 Approval of NDT Proecedure WC R R HP RAs per Approved Procedure



CAT A CAT B

6 Approval of NDT Proecedure WC R R HP RAs per Approved Procedure

7Review of Joint numbering in drawings

WC R R R R EIL Specs / Relevant Stds.

8Review fabrication, erection, testingprocedures for job

WC R R HP R Job Procedure

B FABRICATION/ERECTION BOTTOM

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1Blast cleaning & painting of underside ofBottom plates

WC W W S S

EIL Specs / Approved JP and Applicable formats

2Plate lay out, overlap and fit up

WC W W S --Applicable formats

3 Sequence of welding WC R R S --As per Approved Procedure

4Size and positioning of backing plate for annular plates WC W W S --

Applicable formats

5Baking of electrodes

WC S S S --As per manufacture standard

6 Visual check of welding WC W W S SApplicable formats

7PT/MT/NDT of annular plate butt welds andbottom plate butt welds (As applicable) WC W W S S

Applicable formats

8 Vacuum box test for bottom plate welding WC W W S SApplicable formats

SHELL

1Shell course alignments and fit-up of vertical and circumferential joints before welding

WC W W S SApplicable formats



CAT A CAT B

2Check Shell diameter, circularity,Perpendicularity, straight edge before & after welding.


4 Visual check of welding and Back chipping WC W W S -Applicable formats

5 Inner side welding visual check WC W W S SApplicable formats

6Location, size, alignment and fit-up of nozzles & other openings

WC W W S RApplicable formats

7 R.F. Pads fit-up/welding WC W W S S Applicable

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formats

8PWHT of shell, RF pads, Nozzles, manholes,etc. (As applicable)

WC W W S R EIL Specs / Relevant Stds

9Radiography marking (for Random radiography only)Curb angle and Wind girders fit-up/welding

WC R R R R

EIL Specs / Relevant Stds and Applicable formats

10PT/MT of nozzles, wind girders and otherattachments (as applicable)


11 RF pads pneumatic test WC W W S WApplicable formats

12 Shell to bottom fit up WC W W S SApplicable

formats

13Shell to bottom I/S welding root run visual/Oilchalk test WC W W S S

Applicable formats

14 Shell to bottom O/S welding visual and PT WC W W S S Applicable formats

15 Fabrication and erection of stair ways WC W W S -Applicable

formats

16 Cleats welding for insulation WC W W S -Applicable

formats

17Review of radiographs interpreted by thecontractors

WC R R5%

Film R5%

Film RApplicable

formats



CAT A CAT B

FIXED ROOF

1Blast cleaning and painting Roof Structure,underside of Roof plates WC W W S S

Applicable formats

2 Location and Welding of Roof supports. WC W W S --Applicable

formats

3 Alignment and welding of Roof structures WC W W S --Applicable

formats

4 Plate layout, overlap and fit-up WC W W S --Applicable

formats

2 4.03.2013





5 Visual check of roof welds WC W W S --Applicable

formats

6Location, size and alignment of roof nozzles,man-holes vents, etc

WC W W S S

EIL Specs / Relevant Stds and

Applicable formats

7

PWHT (as applicable)i) Procedure reviewii) PWHT cycle monitoringiii) Time-Temp Chart Review

WCWCWC

RWR

RWR

HPSR

R--R


Applicable formats

8 RF pads fit-up & Welding WC W W S S Applicable formats

9 RF pad pneumatic testing WC W W S S Applicable formats

10 PT/MT of Nozzles, vents & other attachments WC W W S S


Applicable formats

11Welding of Roof plate with shell/ curbangle

WC W W S --Applicable

formats

FLOATING ROOF

1 Temporary staging spacing and levels WC W W S --Applicable

formats

2 Plate layout, overlap, fit-up/welding WC W W S --Applicable

formats



CAT A CAT B

3Availability of approved calculations fordesign of buoys WC R R HP -- EIL Specs /

Relevant Stds

4 Buoys fabrications WC W W S -- EIL Specs / Relevant Stds

5 Vacuum testing of roof-plate welds WC W W S --Applicable

formats

6 Location of sleeve supports WC W W S -- EIL Specs / Relevant Stds

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7Pad plate welding with roof and sleevesupport WC W W S -- EIL Specs /

Relevant Stds

8Fixing and welding of Buoys


formats

9 Initial – lift WC W W S -- EIL Specs / Relevant Stds

10 Supports fixing through sleeves WC W W S -- EIL Specs / Relevant Stds

11Seal welding of support sleeves frombeneath after dewatering WC W W S -- EIL Specs /

Relevant Stds

12Air test of BuoysPontoon welding


formats

13Location, fixing and welding of man holes,drains etc.

WC W W W --Applicable

formats

14 Shell to pontoon clearance WC W W S -- EIL Specs / Relevant Stds

15 Seal fixing WC W W S -- EIL Specs / Relevant Stds

16Floating Roof Testing, as required e.g.flooding etc

WC W W HP --Applicable

formats



CAT A CAT B

C TESTING

1

Correctness of testing arrangementsespecially size of blind flanges/vents/drains/Temporary piping.

WC W W S -- EIL Specs / Relevant Stds

2 Mechanical / Inspection clearances WC W W HP HPApplicable

formats

3 Earthing of ladder & shell WC W W S S EIL Specs / Relevant Stds

2 4.03.2013





4Settlement readings during water filling

WC W W S RApplicable

formats

5 Hammer test WC W W S SApplicable

formats

6 Air pressure test WC W W S SApplicable

formats

7 Vacuum test WC W W W WApplicable

formats

8Roof collapsibility test in case of floatingroof tanks

WC W W W W EIL Specs / Relevant Stds

9Calibration of tanks from Statutoryauthorities

WC R R R R

Report to be submitted by

Statutory authorities

10 INSPECTION & TEST DOCUMENTSApplicable

formats

Review Test and Inspection Documents

NOTE : 1) For cleaning & painting, please refer ITP No. 2501

2) For Insulation, please refer ITP No. 2505

CAT A: Site fabricated steel storage tanks for process fluid /Hydrocarbon, floating roofTanks

CAT B: Site fabricated steel storage tanks for Raw water, Fire water, waste water, Dmwater, etc.

LEGEND

HP: Hold Point, W: Witness Point, R: Review of Contractor's documentation, S: Surveillance Inspection by Owner/EIL, WC: 100% Examination by Contractor.

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itp - tanks -01

Documents

pt wcwwssapplicable

fit upwcwwssapplicable

os welding visual

check shell diameter

pwht of shell

sequence of welding

vacuum box test

cat acat b aprior