About CEN
The European Committee for Standardization is one of three European Standardization Organizations (together with CENELEC and ETSI) that have been officially recognized by the European Union and by the European Free Trade Association (EFTA) as being responsible for developing and defining voluntary standards at European level.
- |
Project
| Reference | EN ISO 11904-2:2021 |
|---|---|
| Title | Acoustics - Determination of sound immission from sound sources placed close to the ear - Part 2: Technique using a manikin (ISO 11904-2:2021) |
| Work Item Number | 00211200 |
| Abstract/Scope | This document specifies basic framework measurement methods for sound immission from sound sources placed close to the ear. These measurements are carried out with a manikin, equipped with ear simulators including microphones. The measured values are subsequently converted into corresponding free-field or diffuse-field levels. The results are given as free-field related or diffuse-field related equivalent continuous A-weighted sound pressure levels. The technique is denoted the manikin technique. This document is applicable 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 audio communication facilities. This document is applicable in the frequency range from 20 Hz to 10 kHz. For frequencies above 10 kHz, ISO 11904-1 can be used. |
| Status |
Published
|
| Reference Document |
ISO 11904-2:2021 (EQV)
|
| date of Availability (DAV) | 2021-03-17 |
| ICS | 13.140 - Noise with respect to human beings |
| A-Deviation(s) | |
| Special National Condition(s) |
Legal
| Directive(s) | |
|---|---|
| Mandate(s) | |
| Citation in OJEU |
Implementation Dates
| date of Ratification (DOR) (1) | 2021-03-09 |
|---|---|
| date of Availability (DAV) (2) | 2021-03-17 |
| date of Announcement (DOA) (3) | 2021-06-30 |
| date of Publication (DOP) (4) | 2021-09-30 |
| date of Withdrawal (DOW) (5) | 2021-09-30 |
Relations
| Supersedes | EN ISO 11904-2:2004 |
|---|---|
| Superseded by | |
| Normative reference (6) |
IEC 61260
IEC 61672-1 ITU-T P.58:2013
|
| Sales Points |
|
(1) Date of ratification (dor) date when the Technical Board notes the approval of an EN (and HD for CENELEC), from which time the standard may be said to be approved
(2) Date of availability (dav) date when the definitive text in the official language versions of an approved CEN/CENELEC publication is distributed by the Central Secretariat
(3) Date of announcement (doa) latest date by which the existence of an EN (and HD for CENELEC), a TS or a CWA has to be announced at national level
(4) Date of publication (dop) latest date by which an EN has to be implemented at national level by publication of an identical national standard or by endorsement
(5) Date of withdrawal (dow) latest date by which national standards conflicting with an EN (and HD for CENELEC) have to be withdrawn
(6) This list of normative references is purely indicative. The only official list of normative reference is the list of the published standard.
In the case of undated standard, a link to the last dated version is provided.
In the case of series, a link to each standard identified in the series is provided.
We also invite you to check (via the website) whether corrigenda and/or amendments shall be read in conjunction with the main standard.