DIN EN 60661:2015
家用电咖啡壶性能的测量方法(IEC 60661-1999,修改+A1-2003,修改+A2-2005,修改);德文版本EN 60661-2014
Methods for measuring the performance of electric household coffee makers (IEC 60661:1999, modified + A1:2003, modified + A2:2005, modified); German version EN 60661:2014