EN ISO 1680:2013

Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 Description of machinery family
5 Sound power determination
6 Installation and mounting conditions
7 Operating conditions
8 Measurement uncertainty
9 Determination of the emission sound pressure
   level
10 Indication of noise emission quantities determined
   according to this International Standard
11 Information to be recorded
12 Information to be reported
13 Declaration and verification of noise emission
   values (if required)
Annex A (informative) - Overview of standards
        for the determination of sound power levels
        of machines and equipment
Annex B (informative) - Example of a dual-number
        declaration for rotating electrical machines
Bibliography

ISO 1680:2013 specifies all the information necessary to carry out efficiently and under standardized conditions the determination, declaration, and verification of the noise emission characteristics of rotating electrical machines. It specifies noise measurement methods that can be used, and specifies the operating and mounting conditions required for the test.Noise emission characteristics include the sound power level and emission sound pressure level. The determination of these quantities is necessary: to compare the noise emitted by machines; to enable manufacturers to declare the noise emitted; for noise control purposes.The use of ISO 1680:2013 as a noise test code ensures the reproducibility of the determination of the noise emission characteristics within specified limits determined by the grade of accuracy of the basic noise measurement method used. Noise measurement methods allowed by ISO 1680:2013 are precision methods (grade 1), engineering methods (grade 2) and survey methods (grade 3). Methods of engineering grade (grade 2) are preferred.ISO 1680:2013 is applicable to rotating electrical machines of any length, width or height.