CEN/TC 203/WG 5 - Materials, dimensions, common characteristics

This European Standard specifies the requirements and associated test methods applicable to ductile iron pipes, fittings, accessories and their joints for theconstruction of pipelines: - to convey air or combustible gases (e.g. natural gas or town gas) at pressures up to 16 bar; - to be installed below or above ground. Note 1: A combustible gas is a gas or any fuel that is in a gaseous state at a temperature of 15°C at a pressure of 1 bar.