CEN/TC 211
| Registration number (WIID) | Project No. | Title | Status |
|---|---|---|---|
| 9727 | EN 27029:1991 | Acoustics - Threshold of hearing by air conduction as a function of age and sex for otologically normal persons (ISO 7029:1984) | Atcelts |
| 9726 | EN 26189:1991 | Acoustics - Pure tone air conduction threshold audiometry for hearing conservation purposes (ISO 6189:1983) | Atcelts |
| 9744 | EN 25136:1993 | Acoustics - Determination of sound power radiated into a duct by fans - In-duct method (ISO 5136:1990 and Technical Corrigendum 1:1993) | Atcelts |
| 9743 | EN 25135:1991 | Acoustics - Determination of sound power levels of noise from air terminal devices, high/low velocity/pressure assemblies, dampers and valves by measurement in a reverberation room (ISO 5135:1984) | 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 |
| 9741 | EN 24869-1:1992 | Acoustics - Hearing protectors - Subjective method for the measurement of sound attenuation (ISO 4869-1:1990) | Atcelts |
| 9720 | EN 23742:1991 | Acoustics - Determination of sound power levels of noise sources - Precision method for discrete-frequency and narrow-band sources in reverberation rooms (ISO 3742:1988) | Atcelts |
| 9719 | EN 23741:1991 | Acoustics - Determination of sound power levels of noise sources - Precision methods for broad-band sources in reverberation rooms (ISO 3741:1988) | Atcelts |
| 9756 | EN 22922:1993 | Acoustics - Measurement of noise emitted by vessels on inland water-ways and harbours (ISO 2922:1975) | Atcelts |
| 9737 | EN 21683:1994 | Acoustics - Preferred reference quantities for acoustic levels (ISO 1683:1983) | Atcelts |
Displaying 411-420 of 426 results.