The document specifies requirements for construction, design, performance, marking and user information for ear-muffs fitted to an industrial helmet which complies with EN 397. In particular, it specifies the sound attenuation of the helmet mounted ear-muffs, measured in accordance with EN 24869-1. Because one model of ear-muffs designed to be attached to an industrial safety helmet can be fitted to a number of helmet models and sizes, this part of the standard sets out a series of physical and acoustic requirements for the ear-muffs when fitted to the specified model(s) or size(s) of helmet.
Số hiệu tiêu chuẩn
DIN EN 352-3
Tên tiêu chuẩn
Hearing protectors - General requirements - Part 3: Ear-muffs attached to an industrial safety helmet; German version EN 352-3:2002
Ngày phát hành
2003-04-00
Tiêu chuẩn tương đương
EN 352-3 (2002-10), IDT * TS EN 352-3 (2003-02-05), IDT
Từ khóa
Bending * Definitions * Design * Durability * Ear muffs * Ear protectors * Ear-muff type wearing protectors * Fall * Fire risks * Fixings * Flammability * Head (anatomy) * Height * Helmets * Helmets (protective) * Industries * Information * Inspection * Instruments * Insulations * Leakages * Loading * Marking * Materials * Measurement * Methods * Moisture * Occupational safety * Patterns * Pressing force * Principle * Properties * Protective clothing * Protective equipment * Rotation * Safety * Safety engineering * Safety requirements * Setting range * Simulators * Size * Sound * Sound insulation * Specification (approval) * Stays * Temperature * Testing * Treatment * User information * Workplace safety * Processes * Procedures * Storage quality * Stress * Endurance tests
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