NBN EN 1254-3:1998

This European standard specifies materials, assembly dimensions and tolerances and test requirements for fittings of copper and copper alloys with or without plating or coating. This part of prEN 1254 specifies connection end dimensions of compression ends for the purpose of joining plastics pipes for use in cold or combined hot and cold water systems or non-fuel gas systems. Fittings may comprise a combination of any of the end types specified in prEN 1254-1 to prEN 1254-5 or other standards. The standard establishes a designation system for the fittings.