CEN/TC 211
| Registration number (WIID) | Project No. | Title | Status |
|---|---|---|---|
| 9772 | EN ISO 389:1995 | Acoustics - Standard reference zero for the calibration of pure-tone air conduction audiometers (ISO 389:1991) | Atcelts |
| 9772 | LVS EN ISO 389:1995 | Acoustics - Standard reference zero for the calibration of pure-tone air conduction audiometers (ISO 389:1991) | Atcelts |
| 9771 | prEN ISO 4869-5 | Acoustics - Measurement of performance characteristics of hearing protectors in impulsive noise | Izstrādē |
| 9770 | EN ISO 4869-4:2000 | Acoustics - Hearing protectors - Part 4: Measurement of effective sound pressure levels for level-dependent sound-restoration ear-muffs (ISO/TR 4869-4:1998) | Atcelts |
| 9770 | LVS EN ISO 4869-4:2002 | Acoustics - Hearing protectors - Part 4: Measurement of effective sound pressure levels for level-dependent sound-restoration ear-muffs | Atcelts |
| 9769 | EN 24869-3:1993 | Acoustics - Hearing protectors - Part 3: Simplified method for the measurement of insertion loss of ear-muff type protectors for quality inspection purposes (ISO/TR 4869-3:1989) | Atcelts |
| 9769 | LVS EN 24869-3:2003 | Acoustics - Hearing protectors - Part 3: Simplified method for the measurement of insertion loss of ear-muff type protectors for quality inspection purposes | Atcelts |
| 9768 | EN ISO 11957:1996 | Acoustics - Determination of sound insulation performance of cabins - Laboratory and in situ measurements (ISO 11957:1996) | Atcelts |
| 9768 | LVS EN ISO 11957:1996 | Acoustics - Determination of sound insulation performance of cabins - Laboratory and in situ measurements | Atcelts |
| 9767 | LVS EN ISO 11820:2001 | Acoustics - Measurements on silencers in situ | Standarts spēkā |
Displaying 321-330 of 424 results.