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).

SS EN 28659 Ed. 1 (1991) - Identical

UNE EN 28659:1992 - Identical

ISO 6708:1995 - Identical

ISO 7005-2:1988 - Identical

ISO 7005-3:1988 - Identical

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