NF EN ISO 4869-2 : 1995
Withdrawn
A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.
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ACOUSTICS - HEARING PROTECTORS - PART 2: ESTIMATION OF EFFECTIVE A-WEIGHTED SOUND PRESSURE LEVELS WHEN HEARING PROTECTORS ARE WORN
05-01-2019
12-01-2013
Foreword
Introduction
1 Scope
2 Normative references
3 Definitions
4 Measurement of sound attenuation of hearing protectors
5 Calculation of the assumed protection value APV[fx] of a
hearing protector for a selected protection performance
6 Octave-band method
7 HML method
8 SNR method
Annex A (informative) Example of the calculation of the
assumed protection values, APV[fx]
Annex B (informative) Example of the calculation of L'[Ax]
according to the octave-band method
Annex C (informative) Example of calculation and use of H,
M and L values
Annex D (informative) Example of the calculation and use
of SNR values
Annex E (informative) Bibliography
Annex ZA (normative) Normative references to international
publications with their relevant European publications
Describes three methods of estimating the A weighted sound pressure levels effective when hearing protectors are worn. Coverage includes: Octave-band method, HML method, and SNR method. Also gives detailed tables.
| DevelopmentNote |
INDICE DE CLASSEMENT: S31062-2 Supersedes NFS 31 062 (07/2004)
|
| DocumentType |
Standard
|
| PublisherName |
Association Francaise de Normalisation
|
| Status |
Withdrawn
|
| SupersededBy | |
| Supersedes |
| Standards | Relationship |
| UNE-EN ISO 4869-2:1996 | Identical |
| NS EN ISO 4869-2 : 1995 AC 2007 | Identical |
| BS EN ISO 4869-2:1995 | Identical |
| ISO 4869-2:1994 | Identical |
| UNI EN ISO 4869-2 : 1998 | Identical |
| NBN EN ISO 4869-2 : 1996 COR 2007 | Identical |
| SN EN ISO 4869-2 : 1995 CORR 2007 | Identical |
| NEN EN ISO 4869-2 : 1995 C1 2007 | Identical |
| DIN EN ISO 4869-2:2015-01 (Draft) | Identical |
| I.S. EN ISO 4869-2:1996 | Identical |
| EN ISO 4869-2:2018 | Identical |
| ONORM EN ISO 4869-2 : 1995 | Identical |
| DIN EN ISO 4869-2:1995-08 | Identical |
| NF EN 13819-2 : 2003 | HEARING PROTECTORS - TESTING - PART 2: ACOUSTIC TEST METHODS |
| NF EN 352-1 : 2003 | HEARING PROTECTORS - GENERAL REQUIREMENTS - PART 1: EAR-MUFFS |
| NF EN 352-2 : 2003 | HEARING PROTECTORS - GENERAL REQUIREMENTS - PART 2: EAR-PLUGS |
| NF EN 352-3 : 2003 | HEARING PROTECTORS - GENERAL REQUIREMENTS - PART 3: EARMUFFS ATTACHED TO AN INDUSTRIAL SAFETY HELMET |
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