PHMSA Gas Transmission (GT) Integrity Management
Time: 05/21/2013 04:26 AM
Rule Section: §192.925(b)(1)
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What are the requirements for using External Corrosion Direct Assessment (ECDA)?
- 192.925(b)(1) Preassessment.
In addition to the requirements in ASME/ANSI B31.8S section 6.4 and NACE RP 0502-2002, section 3, the plan's procedures for preassessment must include-
- Provisions for applying more restrictive criteria when conducting ECDA for the first time on a covered segment; and
- The basis on which an operator selects at least two different, but complementary indirect assessment tools to assess each ECDA Region. If an operator utilizes an indirect inspection method that is not discussed in Appendix A of NACE RP0502-2002, the operator must demonstrate the applicability, validation basis, equipment used, application procedure, and utilization of data for the inspection method.
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