Flexible hoses, end fittings and sockets for gas burning appliances. Specification for strip-wound metallic flexible hoses, covers, end fittings and sockets for domestic appliances burning 1st and 2nd family gases|Pipe fittings, Mechanical testing, 2nd family gases, Pull-out tests, Hose connectors, Drop tests, Leak tests, Flexible pipes, Domestic, Steels, Size, Diameter, Gas pipes, Household equipment, Tensile testing, Dimensional tolerances, Cookers, Design, Bend testing, Heat ageing tests, Tensile strength, Impact testing, Pipes, Deformation, Crushing tests, Pressure testing, Thickness, Testing conditions, Swivel pipe connectors, Fire tests, Performance testing, Sealing materials, Elongation, Marking, Test equipment, Durability, Pipe connections, Flow rates, Gas-powered devices, 1st family gases