BS ISO 27427. Anaesthetic & respiratory equipment. Nebulizing systems & components Medical equipment, Electrical medical equipment, Safety measures, Electrical safety, Performance, Hazards, Protected electrical equipment, Radiation hazards, Fire risks, Type testing, Electrical testing, Environmental testing, Environment (working), Circuits, Classification systems, Marking, Symbols, Testing conditions, Instructions for use, Electrical insulation, Earthing, Leakage currents, Impact testing, Drop tests, Flexible conductors, Leakage paths, Clearance distances, Heating tests, Penetration tests, Electrical equipment, Electronic equipment & components, Risk assessment, Control systems