1. ANSI 9.1–9.5/HI, Pumps—General Guidelines for Types, Definitions, Application, Sound Measurement and Decontamination, 2000.
2. ISO 3744, Acoustics—Determination of sound power levels of noise sources using sound pressure—Engineering method in an essentially free field over a reflecting plane, 1994.
3. ISO 11201, 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, 1995.
4. ISO 11202, Acoustics—Noise emitted by machinery and equipment—Measurement of emission sound pressure levels at a work station and at other specified positions—Survey method in situ, 1995.
5. ISO 11204, Acoustics—Noise emitted by machinery and equipment—Measurement of emission sound pressure levels at a work station and at other specified positions—Method requiring environmental corrections, 1995.