CEN/TC 211
| Registration number (WIID) | Project No. | Title | Status |
|---|---|---|---|
| 9782 | LVS EN ISO 389-6:2007 | Acoustics - Reference zero for the calibration of audiometric equipment - Part 6: Reference threshold of hearing for test signals of short duration | Standarts spēkā |
| 9783 | LVS EN ISO 389-7:2001 | Acoustics - Reference zero for the calibration of audiometric equipment - Part 7: Reference threshold of hearing under free-field and diffuse-field listening conditions | Atcelts |
| 23541 | LVS EN ISO 389-7:2006 | Acoustics - Reference zero for the calibration of audiometric equipment - Part 7: Reference threshold of hearing under free- field and diffuse-field listening conditions | Atcelts |
| 59060 | LVS EN ISO 389-7:2006/A1:2016 | Acoustics - Reference zero for the calibration of audiometric equipment - Part 7: Reference threshold of hearing under free-field and diffuse-field listening conditions - Amendment 1: Reference threshold of hearing at 20 Hz and 18 000 Hz under free-field listening conditions and at 20 Hz under diffuse-field listening conditions (ISO 389-7:2005/Amd 1:2016) | Atcelts |
| 68648 | LVS EN ISO 389-7:2020 | Acoustics - Reference zero for the calibration of audiometric equipment - Part 7: Reference threshold of hearing under free-field and diffuse-field listening conditions (ISO 389-7:2019) | Standarts spēkā |
| 21710 | LVS EN ISO 389-8:2004 | Acoustics - Reference zero for the calibration of audiometric equipment - Part 8: Reference equivalent threshold sound pressure levels for pure tones and circumaural earphones | Standarts spēkā |
| 28465 | LVS EN ISO 389-9:2009 | Acoustics - Reference zero for the calibration of audiometric equipment - Part 9: Preferred test conditions for the determination of reference hearing threshold levels (ISO 389-9:2009) | Standarts spēkā |
| 41275 | LVS EN ISO 4869-1:2019 | Acoustics - Hearing protectors - Part 1: Subjective method for the measurement of sound attenuation (ISO 4869-1:2018) | Standarts spēkā |
| 9742 | LVS EN ISO 4869-2:1995 | Acoustics - Hearing protectors - Part 2: Estimation of effective A-weighted sound pressure levels when hearing protectors are worn | Atcelts |
| 28546 | LVS EN ISO 4869-2:1995 /AC:2007 | Acoustics - Hearing protectors - Part 2: Estimation of effective A-weighted sound pressure levels when hearing protectors are worn | Atcelts |
Displaying 351-360 of 424 results.