SS EN 28659 Ed. 1 (1991)现行
Thermoplastic Valves - Fatigue Strength - Test Method
出版：Standardiserings-Kommissionen I Sverige
专家解读视频
Specifies the test needed to confirm the ability of hand-operated plastics valves to withstand prolonged use, with repeated closure and openings. Does not specify the ability of valves to withstand adverse conditions; particularly those of chemically aggressive fluid media and/or environments, or excessive fluid velocities and cavitation. Includes values of parameters necessary for the proper performance of the endurance test (although parameters may be different in particular product standards).
DIN EN 28659 (1991-06) - Identical
ONORM EN 28659:1991 - Identical
BS EN 28659:1992 - Identical
NBN EN 28659:1992 - Identical
I.S. EN 28659:1991 - Identical
ISO 8659:1989 - Identical
NF EN 28659:1991 - Identical
UNI EN 28659:1993 - Identical
UNE EN 28659:1992 - Identical
