NS EN ISO 4869-3 : 1ED 2007
Current
The latest, up-to-date edition.
ACOUSTICS - HEARING PROTECTORS - PART 3: MEASUREMENT OF INSERTION LOSS OF EAR-MUFF TYPE PROTECTORS USING AN ACOUSTIC TEST FIXTURE
12-01-2013
Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Measurement principle
5 Measurement of the insertion loss of ear-muffs
6 Reporting of data
Annex A (informative) Use of the acoustic test fixture as a
directional microphone
Annex B (informative) Uncertainty of insertion loss measurements
ANNEX ZA (informative) Relationship between this International
Standard and the Essential Requirements
of EU Directive 89/686
Defines a method for measuring the insertion loss of ear-muff type hearing protectors using an acoustic test fixture.
| DevelopmentNote |
Supersedes NS ISO 4869-3. (11/2007)
|
| DocumentType |
Standard
|
| PublisherName |
Norwegian Standards (Norges Standardiseringsforbund)
|
| Status |
Current
|
| Supersedes |
| Standards | Relationship |
| UNI EN ISO 4869-3 : 2007 | Identical |
| EN ISO 4869-3:2007 | Identical |
| BS EN ISO 4869-3:2007 | Identical |
| ISO 4869-3:2007 | Identical |
| DIN EN ISO 4869-3:2007-09 | Identical |
| I.S. EN ISO 4869-3:2007 | Identical |
| UNE-EN ISO 4869-3:2008 | Identical |
| SN EN ISO 4869-3:2007 | Identical |
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