ISO/TR 4869-3:1989 PDF
Acoustics — Hearing protectors — Part 3: Simplified method for the measurement of insertion loss of ear-muff type protectors for quality inspection purposes
Title (English):
ISO/TR 4869-3:1989
Acoustics — Hearing protectors — Part 3: Simplified method for the measurement of insertion loss of ear-muff type protectors for quality inspection purposes
- Document status:
- Withdrawn
- Format:
- Electronic (PDF)
- Number of pages:
- 7
- Publication date:
- November 30, 1989
- Edition:
- ISO TR 4869 edition 1 version 1
- ICS:
- 13.340.20
Description (English):
The procedure specified may be used to investigate production spreads of performance as part of type approval or certification procedures and the change of performance with age. It is not intended to be used as the basic test for type approval purposes. Performance data obtained are not to be quoted as representing the real-ear sound attenuation of an ear-muff, nor the protection provided by the ear-muff.
Technical details
- Technical committee
- ISO/TC 43/SC 1 - Noise
- SKU
- ISO/TR 4869-3:1989
