UNI EN ISO 4869-2 : 1998
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
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ACOUSTICS - HEARING PROTECTORS - ESTIMATION OF EFFECTIVE A-WEIGHTED SOUND PRESSURE LEVELS WHEN HEARING PROTECTORS ARE WORN
12-09-2022
01-01-1998
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.
DocumentType |
Standard
|
PublisherName |
Ente Nazionale Italiano di Unificazione (UNI)
|
Status |
Superseded
|
SupersededBy |
Standards | Relationship |
ISO 4869-2:1994 | Identical |
NF EN ISO 4869-2 : 1995 | 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 |
ONORM EN ISO 4869-2 : 1995 | Identical |
BS EN ISO 4869-2:1995 | Identical |
NS EN ISO 4869-2 : 1995 AC 2007 | Identical |
UNE-EN ISO 4869-2:1996 | Identical |
DIN EN ISO 4869-2:1995-08 | Identical |
UNI 9432 : 2011 | Acoustics - Determination ooccupational noise exposure |
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