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Title: A Utilitys Approach To Plastic Tubing Quality Assurance
Author: Ira Feinberg
Source: American Gas Association 1974
Year Published: 1974
Abstract: This paper outlines the quality assurance program established by the Brooklyn Union Gas Company to insure plastic tubing compliance with both ASTM and industrial standards. Included are: the basis for the selection of polyethylene 3406 tubing for service renewals, the need for a purchase specification with accompanying manufacturers certification, the need to test, and the establishment of a quality assurance laboratory. A detailed discussion is included of the in-plant laboratory testing of polyethylene tubing dealing with the establishment of lest procedures, the outfitting of a plastic testing laboratory, the operation of test equipment, the frequency of testing, and the acceptance and/or rejection criteria. Also discussed are acceptable plastic failure modes both ductile and brittle, and our percent rejection rate for the entire testing program. A final comment is made as to the adaptability of this program tn other plastic materials, for example, polybutylene.

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