DIN EN 60601-2-66:2015 医疗电气设备. 第2-66部分: 助听器和助听器系统基本安全和基本性能的特殊要求 (IEC 60601-2-66-2012); 德文版本EN 60601-2-66-2013
Medical electrical equipment - Part 2-66: Particular requirements for the basic safety and essential performance of hearing instruments and hearing instrument systems (IEC 60601-2-66:2012); German version EN 60601-2-66:2013