BS ISO 8639:2016 PDF

What is ISO 8639 - Leak-tightness of GRP pipes and fittings about?

ISO 8639 is the international standard on glass-reinforced thermosetting plastics piping for pressure applications that is a highly durable material, ideally suited for a wide range of applications in various industries where very long lifetime expectancy is required. ISO 8639 specifies test methods for flexible non-thrust resistant socket-and-spigot joints with elastomeric sealing elements for buried and above ground glass-reinforced thermosetting plastics (GRP) pipeline applications. is applicable to joints for either pressure or non-pressure applications. These test procedures are applicable to joints for pipes and fittings of all nominal sizes. The tests are suitable for the evaluation of joints intended for applications in which the liquids are conveyed at temperatures specified in the referring standards. The test procedures in are damaging to the test piece which will not be suitable for reuse after these tests. The test procedure shall be applied for type testing purposes. Note 1: covers methods of test for the leak-tightness and resistance to damage of the joint only, when subject to specified combinations of longitudinal extension (draw), angular movement (angular deflection), compression (deformation) perpendicular to the pipe axis and internal pressure. Note 2: The joints tested in accordance with are subjected to conditions that measure their ability to function and thereby prove the design of the joint, especially for type test purposes.