CEN/TC 211
| Registration number (WIID) | Project No. | Title | Status |
|---|---|---|---|
| 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 |
| 32569 | EN ISO 3746:2009 | Acoustics - Determination of sound power levels of noise sources using sound pressure - Survey method using an enveloping measurement surface over a reflecting plane (ISO 3746:1995, including Cor 1:1995) | Atcelts |
| 9730 | LVS EN 21680-1:1991 | Acoustics - Test code for the measurement of airborne noise emitted by rotating electrical machinery - Part 1: Engineering methods for free-field conditions over a reflecting plane (ISO 1680-1:1986) | Atcelts |
| 9789 | LVS EN ISO 3741:2001 | Acoustics - Determination of sound power levels of noise sources using sound pressure - Precision methods for reverberation rooms | Atcelts |
| 9822 | EN ISO 11204:1995/AC:1997 | Acoustics - Noise emitted by machinery and equipment - Measurement of emission sound pressure levels at a work station and at other specified positions - Method requiring environmental corrections (ISO 11204:1995) | Atcelts |
| 21073 | EN ISO 3741:1999/AC:2002 | Acoustics - Determination of sound power levels of noise sources using sound pressure - Precision methods for reverberation rooms (ISO 3741:1999) | Atcelts |
| 9802 | EN ISO 7235:2003 | Acoustics - Laboratory measurement procedures for ducted silencers and air-terminal units - Insertion loss, flow noise and total pressure loss (ISO 7235:2003) | Atcelts |
| 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 |
| 9735 | EN 29295:1991 | Acoustics - Measurement of high-frequency noise emitted by computer and business equipment (ISO 9295:1988) | Atcelts |
| 9741 | EN 24869-1:1992 | Acoustics - Hearing protectors - Subjective method for the measurement of sound attenuation (ISO 4869-1:1990) | Atcelts |
Displaying 201-210 of 427 results.