This standard specifies test methods for the resistance
to internal pressure (method A) and the leddghhess
(method B) of thennoplastics valves.
This standard is applicable to thermoplastics vaives
intended for the transport of fluids.
EN 917:1997 history
1997EN 917:1997 Plastics Piping Systems - Thermoplastics Valves - Test Methods for Resistance to Internal Pressure and Leaktightness