Manufacturers, standard and code authorities expressly prohibit air testing of PVC pipe and fittings. Not only is air testing dangerous, it is also a bad test. Oct. 10, 2017 In this video from ...
ANN ARBOR, Mich., April 16, 2020 (GLOBE NEWSWIRE) -- NSF International, a global public health and safety organization, has completed the moves of two of its laboratories to one new 20,000-square-foot ...
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