Pikas, J. Beighle, B. Direct assessment, data integration important in establishing pipeline integrity. Oil and Gas Journal, 2nd September 2002, 100(36) pp.

Direct assessment (DA) can be effectively employed to assess pipeline integrity within the framework of an operator's overall integrity-management program (IMP). That view is not shared by some integrity managers, mainly hazardous liquids pipeline operators, who believe DA to be unverifiable and will not incorporate it into their current operations or IMP plans.
Other managers, however, mostly from gas distribution and transmission operators, consider DA necessary for continued operations and a core integrity-assessment methodology, an attitude reflected in their baseline and continuing integrity-assessment plans.

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