BS EN 24869-3:1994
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
View Superseded by
Acoustics. Hearing protectors Simplified method for the measurement of insertion loss of ear-muff type protectors for quality inspection purposes
Hardcopy , PDF
31-08-2007
English
15-02-1994
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Cooperating organizations
National foreword
Brief history
Method
1. Scope
2. Normative references
3. Definitions
4. Principle
5. Measurement of the insertion loss of ear muffs
6. Measurement of application force
7. Reporting of data
Annex
A. (informative) The acoustic test fixture used as a
directional microphone
Tables
1. Random incidence field requirements
A.1 Front-to-random sensitivity index
Figures
1. Example of an acoustic test fixture
2. Example of a test site arrangement (acoustic tunnel)
National annexes
NA (informative) Committees responsible
NB (informative) Cross-references
For quality inspection purposes and to investigate production spreads of performance and changes with age.
| Committee |
EH/1
|
| DevelopmentNote |
Supersedes BS DD192(1990) and 82/54605 DC. Also numbered as ISO TR 4869-3. (09/2005)
|
| DocumentType |
Standard
|
| Pages |
16
|
| PublisherName |
British Standards Institution
|
| Status |
Superseded
|
| SupersededBy | |
| Supersedes |
| Standards | Relationship |
| I.S. EN 24869-3:1994 | Identical |
| NBN EN 24869-3 : 1995 | Identical |
| SNV NF EN 24869-3 : 1994 | Identical |
| UNI EN 24869-3 : 1996 | Identical |
| EN 24869-3 : 1993 | Identical |
| UNE-EN 24869-3:1994 | Identical |
| NF EN 24869-3 : 1994 | Identical |
| DIN EN 24869-3:1994-02 | Identical |
| BS 6840-7(1996) : 1996 | SOUND SYSTEM EQUIPMENT - PART 7: HEADPHONES AND EARPHONES |
| DEFSTAN 00-25(PT14)/1(2000) : 2000 | HUMAN FACTORS FOR DESIGNERS OF EQUIPMENT - PART 14: MILITARY LAND VEHICLE DESIGN |
| PD 6545:2005 | Intended use of human head and ear simulators-guide |
| BS 6397:1983 | Specification for scales and sizes for plotting frequency characteristics and polar diagrams |
| ISO 4869-1:1990 | Acoustics Hearing protectors Part 1: Subjective method for the measurement of sound attenuation |
| BS 903-A26:1969 | Physical testing of rubber Determination of hardness |
| BS 2475:1964 | Specification for octave and one-third octave band-pass filters |
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