ISO 13347-4:2004 Preview

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

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.


General information

  • Current status : Published
    Publication date : 2004-08
  • Edition : 1
    Number of pages : 25
  • :
    ISO/TC 117
    Fans
  • 23.120
    Ventilators. Fans. Air-conditioners
    17.140.20
    Noise emitted by machines and equipment

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