BS EN 15502-1. Gas-fired heating boilers. Part 1. General requirements and tests|Hot-water supply systems, Test equipment, Testing conditions, Ignition systems (heat engineering), Performance testing, Automatic control systems, Performance, Domestic safety, Thermal testing, Maintenance, Classification systems, Temperature, Control devices, Leak tests, Fire safety, Instructions for use, Combustion, Mathematical calculations, Gas space heating, Valves, Electrical safety, Installation, Water heaters, Stability, Domestic, Hot-water boilers, Design, Pressure testing, Flames, Temperature rise, Combustion products, Flues, Boilers, Marking, Central heating, Gas-powered devices