Historical

ISO 8659:1989

Thermoplastics valves - Fatigue strength - Test method


Specifies a method for testing the fatigue strength and performance of thermoplastic valves incorporated in a valve assembly with its obturator mechanism under pressure. Repeated opening and closing shall be performed for as many cycles and using the torque as specified by the particular product standard.


CONTENT PROVIDER
International Organization for Standardization [iso]

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