NBN EN 28659:1992现行

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).

ISO 8659:1989 - Identical

UNI EN 28659:1993 - Identical

NF EN 28659:1991 - Identical

I.S. EN 28659:1991 - Identical

BS EN 28659:1992 - Identical

DIN EN 28659 (1991-06) - Identical

ISO 161-1:1996 - Identical

ONORM EN 28659:1991 - Identical

ISO 7005-3:1988 - Identical

ISO 7005-2:1988 - Identical

ISO 6708:1995 - Identical

UNE EN 28659:1992 - Identical

SS EN 28659 Ed. 1 (1991) - Identical