BS ISO 4437-3. Plastics piping systems for the supply of gaseous fuels. Polyethylene (PE). Fittings Polyethylene, Pipe fittings, Pipes, Gaseous fuels, Gas supply, Gases, Thermal fusion jointing, Fusion welding, Butt joints, Spigot-&-socket joints, Welded fittings, Gas pipes, Gas pipelines, Plastics, Underground,
Dimensions, Physical properties of materials, Mechanical properties of materials, Marking, Pipe coatings, Mathematical calculations