Three basic noise emission standards for determination of the sound power levels are specified in this document in order to avoid undue restriction on existing facilities and experience.

This fourth edition cancels and replaces the third edition (ISO 7779:2010), which has been technically revised. The main changes compared to the previous edition are as follows:

ISO 7779 was prepared by Technical Committee ISO/TC 43, Acoustics, Subcommittee SC 1, Noise. This third edition cancels and replaces the second edition (ISO 7779:1999), which has been technically revised. It also incorporates the amendment, ISO 7779:1999/Amd.1:2003.

Apr 7, 2017 · In order to ensure accuracy, validity and acceptability, this document is based on the basic International Standards for determination of the sound power level and for determination of the emission sound pressure level at the operator position and bystander positions.

ISO 7779:2010 specifies procedures for measuring and reporting the noise emission of information technology and telecommunications equipment. 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.

ISO 7779 is the international standard for noise measurement of information technology and telecommunications equipment.

Nov 1, 2018 · Three basic noise emission standards for determination of the sound power levels are specified in this document in order to avoid undue restriction on existing facilities and experience.

International Standard ISO 7779 was prepared by Technical Committee ISO/TC 43, Acoustics, Subcommittee SC 1, Noise. This second edition of ISO 7779 cancels and replaces the first edition (ISO 7779:1988), which has been technically revised. Annexes A, B and C form a normative part of this International Standard. Annexes D and E are for ...