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ISO 8659:1989

Thermoplastics valves -- Fatigue strength -- Test method

General information

Withdrawn from 03.04.2020
Directives or regulations
None

Standard history

Status
Date
Type
Name
03.04.2020
Main
15.06.1989
Main
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.

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