PHMSA Gas Transmission (GT) Integrity Management
Time: 05/20/2013 05:26 AM
Frequently-Asked Question FAQ #258
PHMSA Home |
Pipeline Safety Website |
FAQ-258: Corrosion Growth Rate
Question: Corrosion Growth Rate: What is the proper method for determining corrosion growth rate that should be used on cased crossings when calculating reassessment intervals?
Answer: When conducting ECDA, operators must comply with NACE RP 0502-2002 §6.2.3 as referenced by 49 CFR § 192.925 to determine the corrosion growth rate used to calculate the reassessment interval.
These Frequently Asked Questions (FAQs) are intended to clarify, explain, and promote better understanding of the pipeline integrity management rules. These FAQs are not substantive rules and do not create rights, assign duties, or impose new obligations not outlined in the existing integrity management regulations and standards. Requests for informal interpretations regarding the applicability of one or more of the pipeline integrity management rules to a specific situation may be submitted to PHMSA in accordance with 49 C.F.R. § 190.11.
05/20/2013 05:26 AM
Processing: 0.14 sec.
Browser: [unknown] [unknown]