DIN EN 60704-2-1:2015 家用和类似用途电气设备.气载噪测试规程.第2-1部分:真空吸尘器的特殊要求(IEC 60704-2-1-2014);德文版本EN 60704-2-1-2015
Household and similar electrical appliances - Test code for the determination of airborne acoustical noise - Part 2-1: Particular requirements for vacuum cleaners (IEC 60704-2-1:2014); German version EN 60704-2-1:2015