Registration number (WIID)Project No.TitleStatus
9719LVS EN 23741:1991Acoustics - Determination of sound power levels of noise sources - Precision methods for broad-band sources in reverberation rooms (ISO 3741:1988)Atcelts
9720LVS EN 23742:1991Acoustics - Determination of sound power levels of noise sources - Precision method for discrete-frequency and narrow-band sources in reverberation rooms (ISO 3742:1988)Atcelts
9741LVS EN 24869-1:2003Acoustics - Hearing protectors - Part 1: Subjective method for the measurement of sound attentuationAtcelts
9769LVS EN 24869-3:2003Acoustics - Hearing protectors - Part 3: Simplified method for the measurement of insertion loss of ear-muff type protectors for quality inspection purposesAtcelts
9743LVS EN 25135:1991Acoustics - 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
9744LVS EN 25136:2002Acoustics - Determination of sound power radiated into a duct by fans - In-duct methodAtcelts
9726LVS EN 26189:2001Acoustics - Pure tone air conduction threshold audiometry for hearing conservation purposesAtcelts
9727LVS EN 27029:1991Acoustics - Threshold of hearing by air conduction as a function of age and sex for otologically normal persons (ISO 7029:1984)Atcelts
9732LVS EN 27182:2001Acoustics - Measurement at the operator's position of airborne noise emitted by chain sawsAtcelts
9728LVS EN 27566:1991Acoustics - Standard reference zero for the calibration of pure-tone bone conduction audiometers (ISO 7566:1987)Atcelts
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