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IEC 88/148/NP
Declaration of sound power level and tonality values of wind turbines
ISO/DIS 13347-3
Fans - Determination of fan sound power levels under standardized laboratory conditions - Part 3: Enveloping surface methods
ISO/FDIS 13347-2
Fans - Determination of fan sound power levels under standardized laboratory conditions - Part 2: Reverberant room method
ISO/FDIS 15619
Reciprocating internal combustion engines - Measurement method for exhaust silencers - Sound power level of exhaust noise and insertion loss using sound pressure and power loss ratio
ISO/TC 43/SC 1/WG 58
Sound power levels of air-terminal devices
EN 16583/FprA1
Heat exchangers - Hydronic room fan coils units - Determination of the sound power level
ISO/PWI 9614-2
Acoustics - Determination of sound power levels of noise sources using sound intensity - Part 2: Measurement by scanning
ISO 27327-2 CD AMD 1
Fans - Air curtain units - Part 2: Laboratory methods of testing for sound power - Amendment 1
ISO 3744
Acoustics - Determination of sound power levels of noise sources using sound pressure - Engineering methods for an essentially free field over a reflecting plane
FprEN ISO 3744
Acoustics - Determination of sound power levels of noise sources using sound pressure - Engineering methods for an essentially free field over a reflecting plane (ISO/FDIS 3744:2024)
