92/58381 DC : DEC 92

FOREWORD
INTRODUCTION
1 SCOPE
2 REFERENCES
3 DEFINITIONS
4 TECHNICAL ASPECTS OF NOISE CONTROL
5 NOISE CONTROL AT SOURCE
    5.1 General
    5.2 Noise control at source by design
    5.3 Information on noise emission
    5.4 Use of low-noise machine
    5.5 Modification or replacement of machine components
    5.6 Low-noise working and production technologies
    5.7 Maintenance of machines and noise control devices
6 NOISE CONTROL ON THE TRANSMISSION PATH
    6.1 Noise control by means of a proper spatial
          arrangement of the noise sources
    6.2 Use of noise control devices
    6.3 Noise control by use of sound absorbing materials
    6.4 Sound propagation in structures and noise
          control measures
7 NOISE CONTROL AT THE WORK STATION
8 VERIFICATION METHODS
    8.1 General
    8.2 Sound sources
    8.3 Noise control devices
    8.4 Workroom
    8.5 Specified positions, work stations
9 NEW TECHNIQUES
ANNEXES
A Low-noise processes
B Modification or replacement of machine components
C Arrangement of sound sources
D Enclosures
E Silencers
F Noise barriers and screens in rooms
G Acoustical treatment of surfaces
H Structure-borne sound insulation
I Airborne sound insulation of partitions
J Noise control at the work station
K New technologies
L Some literature on noise control measures

Covers the technical aspects of noise control in workplaces. Gives various technical measures, discusses related acoustic quantities, magnitude of noise reduction and outlines verification procedures. Should be used in conjunction with Part 1. (ISO/DIS 11690-2 AND prEN 31690-2)