BS EN ISO 2151:2008 PDF

Scope: This International Standard specifies methods for the measurement, determination and declaration of the noise emission from portable and stationary compressors and vacuum pumps. It prescribes the mounting, loading and working conditions under which measurements are to be made, and includes measurement or determination of the noise emission expressed as  the sound power level under specified load conditions,  the emission sound pressure level at the work station under specified load conditions. It is applicable to  compressors for various types of gases,  oil-lubricated air compressors,  oil-flooded air compressors,  water injected air compressors,  oil-free air compressors,  compressors for handling hazardous gases (gas compressors),  compressors for handling oxygen,  compressors for handling acetylene,  high-pressure compressors [over 4 Mpa (40 bar)],  compressors for application at low inlet temperatures, i.e. below 0 °C,  large compressors (over 1 000 kW input power),  portable and skid-mounted air compressors, and  rotary positive displacement blowers and centrifugal blowers and exhausters in applications u 0,2 MPa (u 2 bar). It is not applicable to  compressors for gases other than acetylene having a maximum allowable working pressure of less than 0,5 bar/0,05 MPa,  refrigerant compressors used in refrigerating systems or heat pumps,  hand-held portable compressors.

BS EN ISO 2151:2008 Referenced Document

IEC 61672-1:2002 Electroacoustics - Sound level meters - Part 1: Specifications
ISO 11201:1995 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
ISO 11202:1995 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
ISO 11203:1995 Acoustics - Noise emitted by machinery and equipment - Determination of emission sound pressure levels at a work station and at other specified positions from the sound power level
ISO 3744:1994 Acoustics - Determination of sound power levels of noise sources using sound pressure - Engineering method in an essentially free field over a reflecting plane
ISO 4871:1996 Acoustics - Declaration and verification of noise emission values of machinery and equipment
ISO 9614-1:1993 Acoustics; determination of sound power levels of noise sources using sound intensity; part 1: measurement at discrete points
ISO 9614-2:1996 Acoustics - Determination of sound power levels of noise sources using sound intensity - Part 2: Measurement by scanning

2008 BS EN ISO 2151:2008 Acoustics - Noise test code for compressors and vacuum pumps - Engineering method (Grade 2)
0000 BS EN ISO 2151:2004