BS EN 352-3:2002

Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Requirements
  4.1 Sizing
  4.2 Materials and construction
  4.3 Performance
5 Marking
6 Information supplied by the manufacturer
  6.1 General
  6.2 Wearer information
  6.3 Additional information
Annex A (informative) Uncertainty of measurement and
        interpretation of test results
Annex ZA (informative) Clauses of this European Standard
         addressing essential requirements or other provisions
         of EU directives
Bibliography

Specifies requirements for construction, design, performance, marking and user information for ear-muffs fitted to an industrial helmet.

This part of the standard specifies requirements for construction, design, performance, marking and user information for ear-muffs fitted to an industrial helmet which complies with EN 397, Industrial safety helmets. In particular, it calls for the sound attenuation of the ear-muffs, measured in accordance with EN 24869-1, to be declared and to be not less than a specified minimum. The requirements of this standard are intended to take account of the ergonomic interaction between the wearer, the device and where possible the working environment in which the device is likely to be used (see Annex ZA, of this standard and EN 458).