ISO 8659:1989
$13.00
Thermoplastics valves — Fatigue strength — Test method
Published By | Publication Date | Number of Pages |
ISO | 1989-06 | 6 |
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.