Specification for flameproof equipment for diesel engines for use in coal mines and other mines susceptible to firedamp|Flame propagation, Fire resistance, Fire safety, Flameproof materials, Diesel engines, Hydraulic tests, Internal combustion engines, Engine components, Engine exhaust systems, Enclosures, Performance testing, Fire-damp, Flame traps, Cut-out devices, Fire tests, Flammable atmospheres, Mining, Explosions, Joints, Engine fuel systems, Occupational safety, Marking, Type testing, Coal mining, Protected electrical equipment, Exhaust gases