Ключевые слова:
Restraint systems (protective), Instructions for use, Penetration tests, Winter sports equipment, Shock-absorbing materials, Testing conditions, Ageing (materials), Impact testing, Test equipment, Mechanical testing, Optical properties of materials, Eye protectors, Optical measurement, Rigidity, Drop tests, Face shields, Helmets (protective), Performance, Specimen preparation, Sports equipment, Design, Field of vision, Marking, Mass, Artificial ageing tests, Ice hockey