EN ISO 2151:2008

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

Publication date:   Mar 27, 2009

General information

60.60 Standard published   Aug 6, 2008


CEN/TC 232 Compressors, vacuum pumps and their systems

European Norm

17.140.20   Noise emitted by machines and equipment | 23.140   Compressors and pneumatic machines



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ISO 2151:2004 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 and 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 40 bar/4 MPa), 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 of 2 bar/0,2 MPa or less. 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, nor to hand-held portable compressors.

Related legislation

Legislation related to this standard




Directive 2006/42/EC of the European Parliament and of the Council of 17 May 2006 on machinery, and amending Directive 95/16/EC (recast)


Life cycle


EN ISO 2151:2004

EN ISO 2151:2004/AC:2006


EN ISO 2151:2008
60.60 Standard published
Aug 6, 2008


Adopted from ISO 2151:2004 IDENTICAL