2014DIN EN ISO 1680:2014-04 Acoustics - Test code for the measurement of airborne noise emitted by rotating electrical machines (ISO 1680:2013); German version EN ISO 1680:2013
2014DIN EN ISO 1680:2014 Acoustics - Test code for the measurement of airborne noise emitted by rotating electrical machines (ISO 1680:2013); German version EN ISO 1680:2013
2000DIN EN ISO 1680:2000 Method for measuring airborne noise emissions from rotating electrical machines