Standard Swedish standard · SS-EN ISO 7779:2010

Acoustics - Measurement of airborne noise emitted by information technology and telecommunications equipment (ISO 7779:2010)

Status: Withdrawn

· Replaced by: SS-EN ISO 7779:2018
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Standard Swedish standard · SS-EN ISO 7779:2010

Acoustics - Measurement of airborne noise emitted by information technology and telecommunications equipment (ISO 7779:2010)
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Scope
This International Standard specifies procedures for measuring and reporting the noise emission of information technology and telecommunications equipment. NOTE 1 This International Standard is considered part of a noise test code (see 3.1.2) for this type of equipment, and is based on basic noise emission standards (see 3.1.1) ISO 3741, ISO 3744, ISO 3745 and ISO 11201. The basic emission quantity is the A-weighted sound power level which may be used for comparing equipment of the same type but from different manufacturers, or for comparing different equipment. Three basic noise emission standards for determination of the sound power levels are specified in this International Standard in order to avoid undue restriction on existing facilities and experience. ISO 3741 specifies comparison measurements in a reverberation test room; ISO 3744 and ISO 3745 specify measurements in an essentially free field over a reflecting plane. Any one of these three basic noise emission standards can be selected and used exclusively in accordance with this International Standard when determining sound power levels of a machine. The A-weighted sound power level is supplemented by the A-weighted emission sound pressure level determined at the operator position(s) or the bystander positions, based on basic noise emission standard ISO 11201. This sound pressure level is not a worker's immission rating level, but it can assist in identifying any potential problems that could cause annoyance, activity interference, or hearing damage to operators and bystanders. Methods for determination of whether the noise emission includes prominent discrete tones or is impulsive in character are specified in Annexes D and E, respectively. This International Standard is suitable for type tests and provides methods for manufacturers and testing laboratories to obtain comparable results.

Subjects

Noise emitted by machines and equipment (17.140.20) General (35.020)


Buy this standard

Standard Swedish standard · SS-EN ISO 7779:2010

Acoustics - Measurement of airborne noise emitted by information technology and telecommunications equipment (ISO 7779:2010)
Subscribe on standards - Read more Dölj
Price: 1 615 SEK
standard ikon pdf

PDF

Price: 1 615 SEK
standard ikon

Paper

Price: 2 584 SEK
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Product information

Language: English

Written by: Svenska institutet för standarder

International title:

Article no: STD-74864

Edition: 2

Approved: 8/23/2010

No of pages: 76

Replaces: SS-EN ISO 7779 , SS-ISO 7779 , SS-EN ISO 7779/A1

Replaced by: SS-EN ISO 7779:2018