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EN 25135:1991

Acoustics - Determination of sound power levels of noise from air terminal devices, high/low velocity/pressure assemblies, dampers and valves by measurement in a reverberation room (ISO 5135:1984) EN 25135:1991

General information

99.60 Withdrawal effective   Dec 16, 1998

CEN

CEN/TC 211 Acoustics

European Norm

17.140.20   Noise emitted by machines and equipment | 91.140.30   Ventilation and air-conditioning systems

Scope

Establishment of general rules for the acoustic testing of air terminal devices, high/low velocity/pressure assemblies and dampers and valves used in air diffusion and air distribution systems as defined in ISO 3258 in order to determine sound power levels as defined in ISO 3740. The method is applicable to equipment operating under steady state conditions.

Life cycle

NOW

WITHDRAWN
EN 25135:1991
99.60 Withdrawal effective
Dec 16, 1998

REVISED BY

WITHDRAWN
EN ISO 5135:1998

Relations

Adopted from ISO 5135:1984 NOT_EQUIVALENT