scope:

This Part of prEN 1555 specifies the characteristics of fusion fittings made from polyethylene(PE) as well as of mechanical fittings made from PE and other materials for piping systems in the field of the supply of gaseous fuels. It also specifies the test parameters for the test methods referred to in the present standard. In conjunction with the other Parts of prEN 1555, it is applicable to PE fittings, their joints and to joints with components of PE and other materials intended to be used under the following conditions:- a maximum operating pressure, MOP, up to and including 10 bar; - an operating temperature of 20°C as ref.