The Office of Pipeline Safety (OPS) and the National Association of Pipeline Safety Representatives (NAPSR) cosponsored a workshop on stress corrosion cracking (SCC) with the pipeline industry trade associations on Tuesday, December 2, 2003 in Houston Texas (see our November, 2003 newsletter). The workshop provided a forum for the discussion of SCC phenomena in both gas and hazardous liquid pipelines. Workshop documents have now been posted at the following website:
RSPA/OPS recently issued an Advisory Bulletin to remind owners and operators of gas transmission and hazardous liquid pipelines to consider SCC as a risk factor when developing and implementing Integrity Management Plans. All owners and operators of pipeline systems, whether or not their pipeline systems are subject to the Integrity Management Plan rules, should determine whether their pipeline system is susceptible to SCC and assess the impact of SCC on pipeline integrity. Based on this evaluation an operator should prioritize application of internal inspection, hydrostatic testing, or other forms of integrity verification.