ISO 9295:2015

ISO 9295:2015

May 2015
International standard Current

Acoustics - Determination of high-frequency sound power levels emitted by machinery and equipment

ISO 9295:2015 specifies four methods for the determination of the sound power levels of high-frequency noise emitted by machinery and equipment in the frequency range covered by the octave band centred at 16 kHz, which includes frequencies between 11,2 kHz and 22,4 kHz. They are complementary to the methods described in ISO 3741 and ISO 3744. The first three methods are based on the reverberation test room technique. The fourth method makes use of a free field over a reflecting plane.The test conditions which prescribe the installation and operation of the equipment are those specified in ISO 3741 or ISO 3744 as applicable.

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Main informations

Collections

International ISO standards

Publication date

May 2015

Number of pages

18 p.

Reference

ISO 9295:2015

ICS Codes

17.140.20   Noise emitted by machines and equipment
35.020   Information technology (IT) in general

Print number

1
Sumary
Acoustics - Determination of high-frequency sound power levels emitted by machinery and equipment

ISO 9295:2015 specifies four methods for the determination of the sound power levels of high-frequency noise emitted by machinery and equipment in the frequency range covered by the octave band centred at 16 kHz, which includes frequencies between 11,2 kHz and 22,4 kHz. They are complementary to the methods described in ISO 3741 and ISO 3744. The first three methods are based on the reverberation test room technique. The fourth method makes use of a free field over a reflecting plane.

The test conditions which prescribe the installation and operation of the equipment are those specified in ISO 3741 or ISO 3744 as applicable.

Replaced standards (1)
ISO 9295:1988
November 1988
International standard Cancelled
Acoustics. Measurement of high-frequency noise emitted by computer and business equipment.

Standard replaced by (1)
ISO 9295:1988
November 1988
International standard Cancelled
Acoustics. Measurement of high-frequency noise emitted by computer and business equipment.

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