DIN EN 60335-2-49:2020
家用和类似用途电器. 安全. 第2-49部分: 商用电器对食物和餐具保温的特殊要求(IEC 60335-2-49-2002 + A1-2008 + A2-2017); 德文版 EN 60335-2-49-2003 + Cor.-2007 + A1-2008 + A11-2012 + A2-2019
Household and similar electrical appliances - Safety - Part 2-49: Particular requirements for commercial electric appliances for keeping food and crockery warm (IEC 60335-2-49:2002 + A1:2008 + A2:2017); German version EN 60335-2-49:2003 + Cor.:2007 + A1:2