NEN EN ISO 11904-2 : 2004
Current
The latest, up-to-date edition.
ACOUSTICS - DETERMINATION OF SOUND IMMISSION FROM SOUND SOURCES PLACED CLOSE TO THE EAR - PART 2: TECHNIQUE USING A MANIKIN
12-01-2013
Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Measurement principle
5 Instrumentation
5.1 Manikin (head and torso simulator)
5.2 Check of calibration
5.3 Filters
6 Determination of free-field or diffuse-field related
equivalent continuous A-weighted sound pressure level
6.1 Measurement of manikin sound pressure level
6.2 Conversion to free-field or diffuse-field related
sound pressure level
6.3 A-weighting and summation
7 Test report
Annex A (informative) Example of sources of measurement
uncertainty
Annex B (informative) Example of an uncertainty analysis
Bibliography
States basic framework measurement methods for sound immission from sound sources placed close to the ear. Applies to exposure to sound from sources close to the ear, for example during equipment tests or at the workplace to sound from earphones or hearing protectors with audiocommunication facilities.
| DocumentType |
Standard
|
| PublisherName |
Netherlands Standards
|
| Status |
Current
|
| Standards | Relationship |
| UNE-EN ISO 11904-2:2005 | Identical |
| ONORM EN ISO 11904-2 : 2005 | Identical |
| EN ISO 11904-2:2004 | Identical |
| UNI EN ISO 11904-2 : 2005 | Identical |
| BS EN ISO 11904-2:2004 | Identical |
| ISO 11904-2:2004 | Identical |
| NF EN ISO 11904-2 : 2005 | Identical |
| NS EN ISO 11904-2 : 1ED 2005 | Identical |
| I.S. EN ISO 11904-2:2004 | Identical |
| DIN EN ISO 11904-2:2005-02 | Identical |
| SN EN ISO 11904-2 : 2005 | Identical |
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