CEN/TC 211
| Registration number (WIID) | Project No. | Title | Status |
|---|---|---|---|
| 9741 | EN 24869-1:1992 | Acoustics - Hearing protectors - Subjective method for the measurement of sound attenuation (ISO 4869-1:1990) | 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 |
| 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 |
| 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 |
| 9726 | EN 26189:1991 | Acoustics - Pure tone air conduction threshold audiometry for hearing conservation purposes (ISO 6189:1983) | Atcelts |
| 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 |
| 9732 | EN 27182:1991 | Acoustics - Measurement at the operator's position of airborne noise emitted by chain saws (ISO 7182, ed. 1984) | Atcelts |
| 9728 | EN 27566:1991 | Acoustics - Standard reference zero for the calibration of pure-tone bone conduction audiometers (ISO 7566:1987) | Atcelts |
| 9814 | EN 27574-1:1988 | Acoustics - Statistical methods for determining and verifying stated noise emission values of machinery and equipment - Part 1: General considerations and definitions (ISO 7574-1:1985) | Izstrādē |
| 9815 | EN 27574-2:1988 | Acoustics - Statistical methods for determining and verifying stated noise emission values of machinery and equipment - Part 2: Methods for stated values for individual machines (ISO 7574-2:1985) | Izstrādē |
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