SR EN ISO 3743-1:1997

Acoustics. Determination of souns power levels of noise sources. Engineering methods for small, movable sources in reverberant fields. Part 1: Comparison method for hard-welled test rooms

This part of ISO 3743 specifies a relatively simple engineering method for determining the sound power levels of small, movable noise sources. The measurements are carried out when the source is installed in a hard-walled test room . A comparison method is used to determine to the octave-band sound power levels of the source. The spatial average (octave-band) sound pressure levels produced by a reference sound source of known sound power output. The difference in sound pressure levels is equal to the difference in sound power levels if conditions are for both sets of measurements. The A-weighted sound power level is then calculated from the octave-band sound power levels. Note: Precision methods for the determination of sound power levels of small noise sources are specified in ISO 3741 and ISO 3745.

General information

Status : Withdrawn
Approval date : 10/24/1996
Publish date : 10/25/1996
Withdrawal date : 12/15/2009
Number of pages : 22
ICS : 17.140.20 Noise emitted by machines and equipment
Technical Committee : 274 - Human protection against noise and mechanical vibration

Relations with other standards:

Normative reference SR EN 27574-1:1994
Normative reference SR ISO 2204:1997
Normative reference SR EN 27574-4:1994
Normative reference SR EN ISO 3744:1997
Normative reference SR CEI 60804+A1+A2:1995
Replaced by SR EN ISO 3743-1:2009