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ISO 13347-4:2004

Industrial fans — Determination of fan sound power levels under standardized laboratory conditions — Part 4: Sound intensity method

Publication date:   Aug 17, 2004

General information

90.92 Standard to be revised   Sep 21, 2023

ISO

ISO/TC 117 Fans

International Standard

23.120   Ventilators. Fans. Air-conditioners | 17.140.20   Noise emitted by machines and equipment

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Scope

ISO 13347-4:2004 applies to industrial fans as defined in ISO 5801 and ISO 13349. It is limited to the determination of airborne sound emission for the specified set-ups. Vibration is not measured, nor is the sensitivity of airborne sound emission to vibration effects determined.
The sizes of the fan, which can be tested in accordance with ISO 13347-4:2004, are limited only by the practical aspects of the test installations.
ISO 13347-4:2004 determines sound power by using sound intensity measurements on a measurement surface which encloses the sound source. It provides guidelines on the acoustical environment, ambient noise, measurement surface, and number of measurements. The test set-ups are generally designed to represent the physical orientation of a fan installed in accordance with ISO 5801 and also used in ISO 13347-2.

Life cycle

NOW

PUBLISHED
ISO 13347-4:2004
90.92 Standard to be revised
Sep 21, 2023

CORRIGENDA / AMENDMENTS

PUBLISHED
ISO 13347-4:2004/Cor 1:2006

REVISED BY

IN_DEVELOPMENT
ISO/DIS 13347-4