ML20199E389

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Rev 0 to Instruction QI-031, Reinspection of Containment Liner & Tank Stainless Steel Liner
ML20199E389
Person / Time
Site: Comanche Peak  Luminant icon.png
Issue date: 08/21/1985
From: Hansel J, Patterson A, Ross G
EVALUATION RESEARCH CORP.
To:
Shared Package
ML20199D912 List: ... further results
References
FOIA-86-36 QI-031, QI-31, NUDOCS 8606230287
Download: ML20199E389 (7)
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COMANCHE PEAK RESPONSE TEAM QUALITY INSTRUCTION FOR ISSUE SPECIFIC ACTION PLAN VII.c

, INSTRUCTION NO.: QI-031 REVISION: O EFFECTIVE DATE: 8/22/85 REINSPECTION OF CONTAINMENT LINER AND TANK STAINLESS STEEL LINER Prepared by: NIk h .

Date: MfI Approved by: N#M ' M*N Date: 3[IIII E Issue Coordinator 8606230287 860609 PDR FOIA GARDE 86-36 PDR Approved by: e Date: h-j/-

On-Site QA Representative Approved by: L en I'

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QI-031 Rev. 0 1.0 PURPOSE l(

t This procedure provides the methods and accept / reject criteria for the performance of reinspection of the Containment Liners and Tank Stainless Steel Liners.

2.0 APPLICABILITY

! This procedure applies to performance of an independent reinspection of the containment and tank stainless steel liners.

It applies to the samples selected from the liner population defined in the liner population description.

3.0 REFERENCES

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3.1 Memorandum QA/QC-RT-293, dated August 20', 1985, to A. A.

Patterson, providing basis for inspection requirements, including specific sources for attributes and exclusions.

3.2 CPP-009, Rev. O, Performance of Reinspections and Documentation Reviews.

4.0 CENERAL

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Reinspections are performed and documented in accordance with

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established CPRT instructions. This procedure establishes the attributes and accept / reject criteria for the reinspection of the containment and tank stainless steel liners. Reference 3.2 addresses the method to perform and document the reinspection.

5.0 INSTRUCTION Using the information below, perform the reinspections on the items in this population and document the results on the checklist (Attachment 6.1):

5.1 Containment Liner Reinspection A1 Base Material Local Contours The containment liner base material located 10 feet either side of the sample weld, excluding penetrations, embedment plates, beam seats, and overlay plates, is to be reinspected for local contour deviations. The liner place located within 10 feet of the sample veld between the liner and penetrations; embedments, beam seats, and overlay pla'tes, is to be reinspected for local contour deviations. -
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( 5.0 INSTRUCTION (Cont'd) -

The measurements are to be taken at areas of local contour deviations and at intervals sufficient to verify the base material meets the following:

The following local contour deviations are to be verified:

a. A maximum 1-inch gap between the cylindrical liner or done shell plate and a 6 feet long template curved to the required radius placed against the surface of the shell plate and not closer than 12 inches to the vertical weld seam when measuring horizontally or vertically for dome.
b. . A maximum 1 1/2 inch gap when the 6 feet long template is placed across the dome weld seams when measuring horizontally or vertically.
c. A maximum 3/8 inch gap when a 15 inch long template curved to the required radius is placed horizontally and slid along the I

surface of the liner shell plate and not closer than 12 inches to the weld seam.

d. A maximum 3/4 inch deviation from a 10 foot straight edge placed in the vertical direction between the horizontal weld seams.

A2 Weld Sean Offset The sample weld seam will be reinspected to verify that the maximum allowable offset in the final weld joints meet the following:

a. For 3/8 inch plate the maximum offset shall be equal to or less than 3/32 inch,
b. For 1/2 inch plate the maximum offset shall be equal to or less than 1/8 inch.
c. For offsets within in the allowable tolerances the offset faired surface over the width of the finished weld shall be at least 3-to-1 taper.

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( 5.0 INSTRUCTION (Cont'd)

A3 Weld Seam Surface The sample weld sean surface will be reinspected to verify the following:

,' a. The veld sean surface shall be free from coarse ripples or grooves, overlap and abrupt ridges or valleys so that proper interpretation of radiographic and other nondestructive examinations could have been performed.

b. Verify that undercut does not exceed 1/32-inch.

c." The surface of the reinforcement of all butt welded joints may be flush with the base material or may have uniform crowns. Verify that the height of the reinforcement on each face of the seau does not exceed 3/32-inch.

If the base material local contours, weld seam offset,

( and weld seam surface meets the above criteria the checklist shall be marked accept. If the base material local contours, weld joint offset, or weld seam surface does not meet the above criteria the checklist shall be marked reject and the weld and rejectable item shall be identified by a deviation report.

l 5.2 Tank Stainless Steel Liner Reinspection The weld seam surface will be reinspected to verify the j following:

B1 Weld Sean Surface

a. The veld sean surface shall be free from j coarse ripples or grooves, overlap and abrupt l

ridges or valleys so that proper interpretation of radiographic and other nondestructive examinations could have been performed.

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QI-031 Rev. O l

( 5.0 INSTRUCTION -(Cont'd)

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b. Verify that undercut does not exceed 1/32-inch,
c. The surface of the reinforcement of all butt welded joints may be flush with the base l material or may have uniform crowns. Verify that the height of the reinforcement on each face of the seam does not exceed 3/32-inch.

If the veld seau surface meets the above criteria the

' checklist shall be marked accept. If the weld seau does not meet the above criteria the checklist shall be marked reject and the weld and rejectable item shall be identified by a deviation report.

6.0 ATTACHMENT 6.1 Checklist

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- At cchtwnt 6.1 i- 01-031 Rev. 0 6 of 7 CHECKLIST .

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CCHAMCBE FEAE RESPONSE TEAM GECKLIST rwe=ATION DEsc TERITICATION FEG #0.

Reteept of Coet. Liner & FA(7,1 0F 2 Teek S.S. Liner quALITT 1smiaM10N MO. O '*2r 5 EQUIFIENT MAREITAG N0. O soc ===rar20a = 52 = 0 satt 2 CO VERITICATI(Mt ACCEPT REJECT DATE A1 Base Meterial 14 cal Contours

a. Mas 1 inch sep between 6-foot templete end piste
b. Max 1 1/2 inch gap between 6 foot templete med piste g

acrose weld sees

c. Meu 3/8 inch sep between 15 inch templete and piste
d. Men 3/4 inch deviation from 10 foot strataht edae A2 Weld seen offset
e. Men 3/32 inch off-I set for 1/2 inch shell piste l
b. Men 1/8 toch off-set for 1/2 inch done eiste l

l FarransD sT: AFFa0TED ST:

DATE LEAD DISCIFLINE ENGE. DATE DISCIFLINE ENCE.

aseraname BTs .

AFF5uve BT:

unrkw ava DATE . u_rin INSFECTOR DATE

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Attachment 6.1 QI-031

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CHECKLIST (cont'd) ,

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CDMANCRE FEAR RESPONSE TIAN

. CEEQtLIST avrvnATION suas TERIFICATION FEC NO.

Retaspt of Cent. Liner a FACE- 2 CF- 2 Tank S.S. Liner TERIFICATION s AM E IINAEEI

. ACCEPT REJECT MTE

c. Offeet faired at least 3-to-1 A3 Weld Sees Serface
e. Free of coeroe ripples or grooves.

'everlope, or abrupt " -

ridaes or valleve C, b. Undercot does not escoed 1/32 inch _ ,

c. T1ush with base esterial or hee unifore crown.

Reinforcement does not exceed 3/32 inch at each face.

R1 Teck SST Linere Ratnapection

e. Weld surface free of coarse ripples or grooves, over-laps. and abrupt ridaes or valleys.
b. Underest does met l escoed 1/32 inch
e. Weld entface is flesh with beee meterial er hoe entfesa ersum.

Beisfereemoet betabt does set .

exceed 3/32 inch .

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