Registration number (WIID)Project No.TitleStatus
65582ISO 4869-2:2018Acoustics — Hearing protectors — Part 2: Estimation of effective A-weighted sound pressure levels when hearing protectors are wornStandarts spēkā
44791ISO 4869-2:1994/Cor 1:2006Acoustics — Hearing protectors — Part 2: Estimation of effective A-weighted sound pressure levels when hearing protectors are worn — Technical Corrigendum 1Atcelts
10851ISO 4869-2:1994Acoustics — Hearing protectors — Part 2: Estimation of effective A-weighted sound pressure levels when hearing protectors are wornAtcelts
65581ISO 4869-1:2018Acoustics — Hearing protectors — Part 1: Subjective method for the measurement of sound attenuationStandarts spēkā
10850ISO 4869-1:1990Acoustics — Hearing protectors — Part 1: Subjective method for the measurement of sound attenuationAtcelts
9497ISO 3891:1978Acoustics — Procedure for describing aircraft noise heard on the groundAtcelts
46426ISO 3747:2010Acoustics — Determination of sound power levels and sound energy levels of noise sources using sound pressure — Engineering/survey methods for use in situ in a reverberant environmentStandarts spēkā
21749ISO 3747:2000Acoustics — Determination of sound power levels of noise sources using sound pressure — Comparison method in situAtcelts
9243ISO 3747:1987Acoustics — Determination of sound power levels of noise sources — Survey method using a reference sound sourceAtcelts
52056ISO 3746:2010Acoustics — Determination of sound power levels and sound energy levels of noise sources using sound pressure — Survey method using an enveloping measurement surface over a reflecting planeStandarts spēkā
Displaying 221-230 of 377 results.