BS EN ISO 4869-4:2000
Current
The latest, up-to-date edition.
Acoustics. Hearing protectors Measurement of effective sound pressure levels for level-dependent sound-restoration ear muffs
Hardcopy , PDF
English
15-08-2000
Important note : Users cannot be edited or removed once added to your Multi user PDF.Specifies a physical test procedure for level-dependent sound-restoration ear-muffs. The physical methods are made with the acoustic test fixture (ATF) according to ISO/TR 4869-3 according to ISO/TR 4869-3 or with a suitable head and torso simulator (HATS) with a suitable acoustic isolation. The test results can be used in conjunction with the results from the ISO 4869-1 tests to estimate the effective A-weighted sound pressure level when sound restoration ear-muffs are worn. Not suitable for measurement of the effective sound pressure level under ear-muffs in the case of impulsive noise or for active noise reduction ear-muffs.
| Committee |
EH/1/1
|
| DevelopmentNote |
Supersedes 99/564538 DC. (10/2005)
|
| DocumentType |
Standard
|
| Pages |
18
|
| PublisherName |
British Standards Institution
|
| Status |
Current
|
| SupersededBy | |
| Supersedes |
| Standards | Relationship |
| UNE-EN ISO 4869-4:2000 | Identical |
| NS EN ISO 4869-4 : 1ED 2000 | Identical |
| SN EN ISO 4869-4 : 2000 | Identical |
| ISO/TR 4869-4:1998 | Identical |
| NEN EN ISO 4869-4 : 2000 | Identical |
| EN ISO 4869-4:2000 | Identical |
| NBN EN ISO 4869-4 : 1ED 2000 | Identical |
| NF EN ISO 4869-4 : 2000 | Identical |
| I.S. EN ISO 4869-4:2000 | Identical |
| UNI EN ISO 4869-4 : 2002 | Identical |
| ISO/IEC 9798-6:2005 | Identical |
| DIN EN ISO 4869-4:2000-10 | Identical |
| PD 6545:2005 | Intended use of human head and ear simulators-guide |
| IEC 61094-4:1995 | Measurement microphones - Part 4: Specifications for working standard microphones |
| ISO 4869-1:1990 | Acoustics Hearing protectors Part 1: Subjective method for the measurement of sound attenuation |
| ISO 4869-2:1994 | Acoustics Hearing protectors Part 2: Estimation of effective A-weighted sound pressure levels when hearing protectors are worn |
| 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 |
| IEC 61260:1995 | Electroacoustics - Octave-band and fractional-octave-band filters |
| IEC 60651:1979+AMD1:1993+AMD2:2000 CSV | Sound level meters |
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