KS I ISO 11201:2021 Acoustics — Noise emitted by machinery and equipment —Determination of emission sound pressure levels at a work station and at other specified positions in an essentially free field over a reflecting
2021KS I ISO 11201:2021 Acoustics — Noise emitted by machinery and equipment —Determination of emission sound pressure levels at a work station and at other specified positions in an essentially free field over a reflecting
2018KS I ISO 11201:2018 Acoustics — Noise emitted by machinery and equipment — Determination of emission sound pressure levels at a work station and at other specified positions in an essentially free field over a reflecting
2002KS I ISO 11201:2002 Acoustics-Noise emitted by machinery and equipment-Measurement of emission sound pressure levels at a work station and at other specified positions-Engineering method in an essentially free field over a reflecting plane