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Standard

NS-EN 28659:1990

Withdrawn
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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.

Document information

  • Standard from SN
  • Published:
  • Withdrawn:
  • Edition: 1990-12
  • Version: 1
  • Document type: NAT
  • ICS 23.060.01
  • National Committee NORSOK/EG L

Legal references

EU law: 305/2011, 89/106/EEC, 90/531/EEC, 93/38/EEC, 97/23/EC

Product Relations

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