Gas-fired central heating boilers - Part 2-1: Specific standard for type C appliances and type B2, B3 and B5 appliances of a nominal heat input not exceeding 1 000 kW
Gas-fired central heating boilers - Part 2-2: Specific standard for type B1 appliances
Gas-fired central heating boilers - Part 2-3: Specific standard for hybrid units combining a gas-fired boiler and an electrical heat pump in a product
Plastics piping systems for the supply of gaseous fuels - Polyethylene (PE) - Part 1: General
Plastics piping systems for the supply of gaseous fuels - Polyethylene (PE) - Part 2: Pipes
Plastics piping systems for the supply of gaseous fuels - Polyethylene (PE) - Part 3: Fittings
Plastics piping systems for the supply of gaseous fuels - Polyethylene (PE) - Part 4: Valves
Plastics piping systems for the supply of gaseous fuels - Polyethylene (PE) - Part 5: Fitness for purpose of the system
Specification for dedicated liquefied petroleum gas appliances - Mobile and portable non-domestic forced convection direct fired air heaters
Specification for dedicated liquefied petroleum gas appliances - Mobile and portable non-domestic forced convection direct fired air heaters
Automatic shut-off valves for gas burners and gas appliances
Automatic shut-off valves for gas burners and gas appliances
53,361 distinct reference strings indexed from official source snapshots accessed on 19 October 2026. Includes earlier editions. The index and publisher collections have different coverage. See sources and coverage.