Descriptors | Firemens helmets, Industrial safety helmets, Helmets (protective), Protective clothing, Headwear, Shape, Dimensions, Performance, Restraint systems (protective), Leakage currents, Marking, Testing conditions, Drop tests, Solvent-resistance tests, Specimen preparation, Penetration tests, Impact testing, Fire tests, Thermal resistance, Thermal testing, Electrical testing, Electrical insulation, Mechanical testing, Test equipment |