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