DIN EN 60731-2006 医疗电气设备. 带电离室的放射量测定器(IEC 60731: 1997 + A1: 2002); 德文版本 EN 60731: 1997 + A1: 2002
Medical electrical equipment - Dosimeters with ionization chambers as used in radiotherapy (IEC 60731:1997 + A1:2002); German version EN 60731:1997 + A1:2002