EN 23741:1991

Acoustics - Determination of sound power levels of noise sources - Precision methods for broad-band sources in reverberation rooms (ISO 3741:1988) EN 23741:1991

General information

Current stage: 99.60 Withdrawal effective Aug 1, 1999

Originator: CEN

Owner: CEN/TC 211 Acoustics

Type: European Norm

ICS: 17.140.01 Acoustic measurements and noise abatement in general

Scope

Specification of a direct method and a comparison method for determining the sound power level produced by a source. It specifies test room requirements, source location and operating conditions, instrumentation and techniques for obtaining an estimate of mean-square sound pressure from which the sound power level of the source in octave or one-third octave bands is calculated. It applies primarily to sources which produce steady broad-band noise as defined in ISO 2204.

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

NOW

WITHDRAWN
EN 23741:1991
99.60 Withdrawal effective
Aug 1, 1999

REVISED BY

WITHDRAWN
EN ISO 3741:1999

EN 23741:1991

Acoustics - Determination of sound power levels of noise sources - Precision methods for broad-band sources in reverberation rooms (ISO 3741:1988) EN 23741:1991

General information

Scope

Related legislation

98/37/EC

89/392/EEC

Life cycle

NOW

REVISED BY

Relations

Adopted from ISO 3741:1988 IDENTICAL