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TDW Qualification Plan - T.D. Williamson, Inc.

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Appendix 10 (Continued)<br />

Field Audit Questionnaire/<strong>TDW</strong> Services Technicians<br />

(Hot Tapping & Plugging)<br />

8a. Are manuals available with technician<br />

8b. Does technician use them<br />

9. Check that measurement cards are being used and dimensions<br />

properly taken and filled out on the card.<br />

10. Check for proper alignment of tapping machine.<br />

11. Correct cutter speed in relation to cutter size.<br />

12. Proper purging of adapter.<br />

13a. Is tapping machine working correctly<br />

13b. Is maintenance required<br />

14. Does technician keep contact with customer during work and<br />

advise him of progress Also, observe in what manner he does keep<br />

this contact.<br />

15. After completion of hot tap, is proper care taken while venting<br />

tapping adapter<br />

16. Was the proper sequence of steps followed in reentry /<br />

LOCK-O-RING ® Plug recovery<br />

17. When a STOPPLE ® plugging operation is required, check for<br />

installation of STOPPLE ® equipment.<br />

18. Is sealing element correct I.D., based on information from<br />

customer and coupon<br />

19. Is oil leaking out of observation hole on hydraulic cylinder<br />

20. Are bypasses (if installed) opened before STOPPLE ® Plugging<br />

Heads are set in line and air properly vented<br />

21. Is the setting of the plugging heads performed as described in<br />

the manual Pub. No. S2A (i.e., use of bar clamp and possible<br />

movement of bar while venting isolation section)<br />

22a. Is isolated section properly vented to atmosphere<br />

22b. Has it been discussed with customer so that no hazardous<br />

gases are vented in the atmosphere without customer approval<br />

Yes<br />

No<br />

40

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