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Title: Defect Behavior In Hydrostatic Testing
Author: Jack Baker
Source: American Gas Association 1970
Year Published: 1970
Abstract: Hydrostatic pipeline testing, which was almost unheard of 20 years ago, has become common place today. This change in pipeline construction practice is largly a result of the realization that the likelihood of a spectacular test failure can be greatly minimized by testing with liquid as opposed to a more conipressible fluid. But even more important, by the realization that the integrity of a pipeline can be enhanced by the higher stress levels permissible with hydrostatic testing. This latter view, unfortunately, is not universally held primarily as a consequence of defect behavior during hydrostatic testing. That is, there are still a few who feel high level hydrostatic testing can adversely affect a pipelines reliability, but their number have decreased measurably during recent years. Again, this is attributable to a better appreciation of the formidable defect behavior problem.

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