PHMSA Gas Transmission (GT) Integrity Management
Time: 05/24/2013 03:28 PM
Rule Section: §192.925(b)(4)
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Post assessment and continuing evaluation.
What are the requirements for using External Corrosion Direct Assessment (ECDA)?
- 192.925(b)(4) Post assessment and continuing evaluation.
In addition to the requirements in ASME/ANSI B31.8S section 6.4 and NACE RP 0502-2002, section 6, the plan's procedures for post assessment of the effectiveness of the ECDA process must include -
- Measures for evaluating the long-term effectiveness of ECDA in addressing external corrosion in covered segments; and
- Criteria for evaluating whether conditions discovered by direct examination of indications in each ECDA region indicate a need for reassessment of the covered segment at an interval less than that specified in §192.939. (See Appendix D of NACE RP0502-2002.)
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