Medical electrical equipment - Diagnostic X-rays - Part 1: Determination of quality equivalent filtration and permanent filtration (IEC 60522-1:2020); German version EN IEC 60522-1:2021
医用电气设备.诊断X射线.第1部分:等效过滤和永久过滤质量的测定(IEC 60522-1-2020);德文版EN IEC 60522-1:2021