ISO 8659:1989
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ISO 8659:1989
16039

Abstract

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.


General information 

  •  :  Withdrawn
     : 1989-06
  •  : 1
     : 2
  •  : ISO/TC 138/SC 7 Valves and auxiliary equipment of plastics materials
  •  :
    23.060.01 Valves in general
    83.140.30 Plastics pipes and fittings for non fluid use

Life cycle


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