BS EN 763:1995 Plastics piping and ducting systems. Injection-moulded thermoplastics fittings. Test method for visually assessing effects of heating
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This standard specifies methods for visually assessing the effects of heating on injection-moulded thermoplastics fittings, including cracking or splitting induced by residual stress.
It is applicable to fittings for pressure and non-pressure applications, e.g. flanged fittings, fittings incorporating elastomeric sealing rings and fittings consisting of the assembly of a number of moulded parts.
Two methods are given, involving respectively useof an air oven, designated method A, and of a liquid bath, designated method B.
In the event of these methods giving differing results, method A is declared to be the reference method for use in case of dispute