M00001789
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ISO 23228 1st Edition, October 1, 2011 Thermoplastics pipes for the conveyance of fluids - Determination of the stress-rupture resistance of moulding materials using plain strain grooved tensile (PSGT) specimens
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Availability date: 07/13/2021
Description / Abstract:
This International Standard specifies a method for the
determination of the time-to-failure of thermoplastics resins and
compounds for piping and fitting applications by the use of a plane
strain grooved tensile specimen in a stress-rupture test.
The grooved tensile specimen produces a biaxial state of stress
on uni-axial loading, which is taken to be indicative of the stress
conditions found in pressurized solid-wall plastics pipes. The
ratio of the stress in the axial direction to the transverse
direction approximates that for a pressurized end-capped solid-wall
pipe specimen[4]–[7].
It is intended that the data generated on these specimens be
utilized to determine the stress-rupture (time to failure)
resistance of moulding materials for pipes and fittings as well as
experimental piping resins.
This method is also applicable to stress-rupture evaluations of
pipes which are difficult to test, e.g. larger diameter pipes,
including their batch release tests.
This International Standard is not intended to replace the
stress-rupture test of ISO 1167[2], which uses
internally pressurized end-capped pipes.