BS ISO 7509:2015 pdf free.Plastics piping systems一 Glass-reinforced thermosetting plastics (GRP) pipes一 Determination of time to failure under sustained internal pressure. BS ISO 7509 specifies a method for determining the time-to-failure of glass-reinforced thermosetting plastics (GRP) pipes under internal hydrostatic pressure at a specified temperature. The external environment can be air or water. NOTE Forotherinternal orexternal environments, the referringstandard is to specifyanyadditional requirement. 2 Normative references The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. ISO 3126, Plastics piping systems — Plastics components — Determination of dimensions ISO 10928, Plastics piping systems — Glass-reinforced thermosetting plastics (GRP) pipes and fittings — Methods for regression analysis and their use 3 Terms and definitions For the purposes of this document, the following terms and definitions apply. 3.1 failure occurrence of bursting, leaking, or weeping Note ito entry: See 2.1. 3.2 bursting failure by rupture of the pipe wall with immediate loss of test liquid and drop of pressure Note ito entry: See 9.1. and 92.1.. 3.3 leaking failure by…

ISO 3458-2015 pdf free.Plastics piping systems一Mechanical joints between fittings and pressure pipes – Test method for leaktightness  under internal pressure. ISO 3458 specifies the method of test for checking the leak tightness of assembled joints between mechanical fittings and plastic pressure pipes. The test applies regardless of the design and material of the fitting used for jointing plastic pipe. This test method is not applicable to fusion-welded joints. 2 Principle The leak tightness of an assembled joint is checked while the joint is subjected to an internal test pressure greater than the nominal pressure for which the pipe is rated with the pieces joined subject to the longitudinal force, induced by the hydrostatic end thrust. 3 Test parameters and requirements The test parameters of the standard which refers to this teststandard shall be used and the requirements shall be fulfilled. Hone or more parameters are not given in the referring International Standard, the ones given in Annex A shall apply. The following test parameters should be given by the standard which refers to this test standard: a) test medium; b) test pressure (bar or MPa); c) test duration (h); d) test temperature (°C); e) free length (mm), 4 Apparatus 4.1…