NF EN 28659:1991现行
Thermoplastics Valves - Fatigue Strength - Test Method
出版：Association Francaise de Normalisation
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).
INDICE DE CLASSEMENT: T54084
UNE EN 28659:1992 - Identical
UNI EN 28659:1993 - Identical
SS EN 28659 Ed. 1 (1991) - Identical
ISO 8659:1989 - Identical
I.S. EN 28659:1991 - Identical
NBN EN 28659:1992 - Identical
BS EN 28659:1992 - Identical
DIN EN 28659 (1991-06) - Identical
ONORM EN 28659:1991 - Identical
SNV NF EN 28659:1991 - Identical
SNV NF EN 28659 : 1991 - Identical
