Mechanical fittings for polyethylene piping systems for the supply of gaseous fuels—Part 2:Metal fittings for pipes of nominal outside diameter greater than 63 mm
Mechanical fittings for polyethylene piping systems for the supply of gaseous fuels—Part 1:Metal fittings for pipes of nominal outside diameter less than or equal to 63 mm
Plastics pipes and fittings—Butt fusion jointing procedures fortpolyethylene (PE) pipes and fittings used in the construction of gas and water distribution systems