ÖNORM ISO 17456:2022 05 15
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Plastics piping systems — Multilayer pipes — Determination of long-term strength (ISO 17456:2006)
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05-15-2022
This document specifies two alternative methods for determining the long-term hydrostatic strength of multilayer pipes: a calculation method applicable to multilayer P pipes (all polymer layers) and a test method applicable to both multilayer P and multilayer M pipes (polymer and metal layers).
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