BS EN ISO 10256-4. Protective equipment for use in ice hockey. Part 4. Head & face protection for goalkeepers Helmets (protective), Sports equipment, Winter sports equipment, Design, Performance, Field of vision, Mass, Restraint systems (protective), Specimen preparation, Drop tests, Penetration tests, Test equipment, Testing conditions, Mechanical testing, Marking, Instructions for use, Face shields, Eye protectors, Rigidity, Optical measurement, Optical properties of materials, Ageing (materials), Impact testing, Shock-absorbing materials, Artificial ageing tests