ISO 2151:2004

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

General information

90.93 Standard confirmed   Nov 10, 2020

ISO

ISO/TC 118/SC 6 Air compressors and compressed air systems

International Standard

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

Scope

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.

Life cycle

PREVIOUSLY

WITHDRAWN
ISO 2151:1972

NOW

PUBLISHED
ISO 2151:2004
90.93 Standard confirmed
Nov 10, 2020