Procedure analyzes low-frequency ERW, flash-welded pipe for HCA integrity assessments

New US regulations, CFR Part 195 Section 195.452, require that special integrity assessments be made to address potential seam-defect problems in low-frequency, electric-resistance-welded (ERW) pipe where a failure of such materials could have affect a high-consequence area (HCA), specifically defined by the regulations based on risks to populated and environmentally sensitive areas. Pipeline operators must develop written integrity-management programs that embody in-line inspection or hydrostatic testing (or an equivalent technique) of segments of their systems that could affect an HCA.Initial baseline assessments must be done on all affected segments by Mar. 31, 2008, and periodic reass...

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