I.S. EN 24869-1:1993
Withdrawn
View Superseded by
ACOUSTICS - HEARING PROTECTORS - SUBJECTIVE METHOD FOR THE MEASUREMENT OF SOUND ATTENUATION
Hardcopy , PDF
English
06-01-1993
05-31-2019
For Harmonized Standards, check the EU site to confirm that the Standard is cited in the Official Journal.
Only cited Standards give presumption of conformance to New Approach Directives/Regulations.
Committees responsible
National foreword
Method
1. Scope
2. Normative references
3. Definitions
4. Measurement of the sound attenuation of hearing
protectors
Annexes
A. Uncertainty of sound attenuation measurements
B. Bibliography
Tables
1. Allowable field variation for different microphones
2. Maximum permissible background sound pressure level
3. Minimum and maximum sound pressure levels for test
signals
A.1 Repeatability and reproducibility of sound
attenuation measurements on ear-muffs at a
probability level of 95% (according to ISO 5725)
A.2 Repeatability and reproducibility of sound
attenuation measurements on ear-plugs at a
probability level of 95% (according to ISO 5725)
Specifies a subjective method for measuring sound attenuation of hearing protectors at the threshold of hearing.
| DocumentType |
Standard
|
| Pages |
20
|
| PublisherName |
National Standards Authority of Ireland
|
| Status |
Withdrawn
|
| SupersededBy |
| Standards | Relationship |
| EN 24869-1:1992 | Identical |
| ISO 4869-1:1990 | Identical |
| NBN EN 24869-1 : 1995 | Identical |
| BS EN 24869-1:1993 | Identical |
| NF EN 24869-1 : 1993 | Identical |
| UNE-EN 24869-1:1994 | Identical |
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