Flame supervision devices for domestic, commercial and catering gas appliances. Specification for heat sensitive type|Leak tests, Pressure, Bend testing, Fire detectors, Paints, Flow rates, Dimensions, Gas valves, Torque, Endurance testing, Pipe connections, Diaphragm valves, Bending, Gas flow, Safety valves, Household equipment, Commercial, Catering equipment, Deformation, Valve components, Control devices, Pipe fittings, Humidity measurement, Performance testing, Cut-out devices, Scratch tests, Safety devices, Test equipment, Switches, Gas-powered devices, Flames, Mechanical testing, Marking, 3rd family gases, 2nd family gases, Valves, Domestic