Specifies requirements for elastomeric materials used in seals for supply pipes and fittings, ancillaries and valves at operating temperatures in general from -5 degree C up to 50 degree C and in special cases from -15 degree C up to 50 degree C, for the following: - gaseous fuel (manufactured, natural and liquefied petroleum gas [LPG] in gaseous phase); - hydrocarbon fluids with aromatic content up to 30 % (V/V), including LPG in liquid phase.