BS G 261-1:1996

Grading (quality);Electromagnetic compatibility;Chemical-resistance tests;Marking;Visual inspection (testing);Aircraft components;Contactors;Dust;Classification systems;Endurance testing;Dielectric strength;Sand;Electrical resistance;Specification (approval);Inspection;Leakage currents;Electrical equipment;Ozone;Leak tests;Quality assurance systems;Electric terminals;Ceramics;Performance;Plastics;Switches;Synthetic rubber;Graphic symbols;Environment (working);Electrical insulation;Electrical testing;Qualification approval;Contamination;Metals;Environmental testing;Design;Threads;Dielectric-strength tests;Electric enclosures;Solid electrical insulating materials;Switchgear;Overload (electric);Electrical measurement;Life (durability);Vibration testing;Approval testing;Protected electrical equipment;Thermal testing;Compatibility;Non-metals;Impact testing;Performance testing;Ratings;Electromagnetically-operated devices;Mechanical testing;Relays;Quality control;Strength of materials;Radioactive isotopes;Testing conditions;Circuits