Ключевые слова:
Firemens helmets, Industrial safety helmets, Helmets (protective), Protective clothing, Field of vision, Performance, Rigidity, Fire resistance, Thermal resistance, Electrical insulation, Strength of materials, Impact testing, Penetration tests, Mechanical testing, Compression testing, Fire tests, Thermal testing, Electrical testing, Artificial ageing tests, Ultraviolet radiation, Test equipment, Testing conditions, Marking, Instructions for use, Hazards