M00017914
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ISO FDIS 8639 2015 Edition, October 27, 2015 GLASS-REINFORCED THERMOSETTING PLASTICS (GRP) PIPES AND FITTINGS - TEST METHODS FOR LEAKTIGHTNESS AND PROVE OF STRUCTURAL DESIGN OF FLEXIBLE JOINTS
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Availability date: 07/14/2021
Description / Abstract:
This International Standard 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. It covers
methods of test for the leaktightness 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. This International Standard is
applicable to joints for either pressure or nonpressure
applications.
NOTE The joints tested in accordance with this International
Standard are subjected to conditions which measure their ability to
function and thereby prove the design of the joint, especially for
type test purposes.
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 this International Standard 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.