I.S. EN ISO 11904-2:2004
Withdrawn
A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.
View Superseded by
ACOUSTICS - DETERMINATION OF SOUND IMMISSION FROM SOUND SOURCES PLACED CLOSE TO THE EAR - PART 2: TECHNIQUE USING A MANIKIN
Hardcopy , PDF
30-09-2021
English
01-01-2004
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.
Dates of withdrawal of national standards are available from NSAI.
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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
Provides basic framework measurement methods for sound immission from sound sources placed close to the ear.
| DocumentType |
Standard
|
| Pages |
28
|
| PublisherName |
National Standards Authority of Ireland
|
| Status |
Withdrawn
|
| SupersededBy |
| Standards | Relationship |
| DIN EN ISO 11904-2:2005-02 | Identical |
| BS EN ISO 11904-2:2004 | Identical |
| NF EN ISO 11904-2 : 2005 | Identical |
| UNE-EN ISO 11904-2:2005 | Identical |
| UNI EN ISO 11904-2 : 2005 | Identical |
| EN ISO 11904-2:2004 | Identical |
| SN EN ISO 11904-2 : 2005 | Identical |
| NS EN ISO 11904-2 : 1ED 2005 | Identical |
| NBN EN ISO 11904-2 : 2005 | Identical |
| NEN EN ISO 11904-2 : 2004 | Identical |
| ISO 11904-2:2004 | Identical |
| ONORM EN ISO 11904-2 : 2005 | Identical |
| IEC 60942:2003 | Electroacoustics - Sound calibrators |
| IEC 60711:1981 | Occluded-ear simulator for the measurement of earphones coupled to the ear by ear inserts |
| IEC 60268-7:2010 | Sound system equipment - Part 7: Headphones and earphones |
| EN 50332-1:2013 | Sound system equipment: Headphones and earphones associated with personal music players - Maximum sound pressure level measurement methodology - Part 1: General method for "one package equipment" |
| IEC 60268-1:1985 | Sound system equipment. Part 1: General |
| ISO 11904-1:2002 | Acoustics — Determination of sound immission from sound sources placed close to the ear — Part 1: Technique using a microphone in a real ear (MIRE technique) |
| IEC 61260:1995 | Electroacoustics - Octave-band and fractional-octave-band filters |
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