DIN EN 917:1997 Plastics piping systems - Thermoplastics valves - Test methods for resistance to internal pressure and leaktightness; German version EN 917:1997
The document specifies test methods for the resistance to internal pressure and the leaktightness of thermoplastics valves.
DIN EN 917:1997 history
1997DIN EN 917:1997-03 Plastics piping systems - Thermoplastics valves - Test methods for resistance to internal pressure and leaktightness; German version EN 917:1997
1997DIN EN 917:1997 Plastics piping systems - Thermoplastics valves - Test methods for resistance to internal pressure and leaktightness; German version EN 917:1997