SR EN ISO 9614-1:2001

Acoustics. Determination of sound power levels of noise sources using sound intensity. Part 1: Measurement at discrete points

1.1 This part of ISO 9614 specifies a method for measuring the component of sound intensity normal to a measurement surface which is chosen so as to enclose the noise source(s) of which the sound power level is to be determined. The one-octave, one-third-octave or band-limited weighted sound power level is calculated from the measured values. The method is applicable to any source for which a physically stationary measurement surface can be defined, and on which the noise generated by the source is stationary in time (as defined in 3.13). The source is defined by the choice of measurement surface. The method is applicable in situ, or in special purpose test environments. 1.2 This part of ISO 9614 is applicable to sources situated in any environment which is neither so variable in time as to reduce the accuracy of the measurement of sound intensity to an unacceptable degree, nor subjects the intensity measurement probe to gas flows of unacceptable speed or unsteadiness (see 5.3 and 5.4). In some cases, it will be found that the test conditions are too adverse to allow the req

General information

Status : Withdrawn
Approval date : 4/26/2001
Publish date : 4/27/2001
Withdrawal date : 1/29/2010
Number of pages : 34
ICS : 17.140.01 Acoustic measurements and noise abatement in gerneral
Technical Committee : 274 - Human protection against noise and mechanical vibration

Relations with other standards: