EN ISO 3743-1:1995

Acoustics - Determination of sound power levels of noise sources - Engineering methods for small, movable sources in reverberant fields - Part 1: Comparison method for hard-walled test rooms (ISO 3743-1:1994)

Publication date:   Sep 1, 2002

General information

99.60 Withdrawal effective   Jul 29, 2009

CEN

CEN/TC 211 Acoustics

European Norm

17.140.01   Acoustic measurements and noise abatement in general

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Scope

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.

Related legislation

Legislation related to this standard

98/37/EC

Machinery

Harmonized/Supporting
89/392/EEC

Machinery - Safety of machinery: general essential health and safety requirements

Harmonized/Supporting

Life cycle

NOW

WITHDRAWN
EN ISO 3743-1:1995
99.60 Withdrawal effective
Jul 29, 2009

REVISED BY

WITHDRAWN
EN ISO 3743-1:2009

Relations

Adopted from ISO 3743-1:1994 IDENTICAL