DIN EN 62431:2009-07 Reflectivity of electromagnetic wave absorbers in millimetre wave frequency - Measurement methods (IEC 62431:2008); German version EN 62431:2008
2009DIN EN 62431:2009-07 Reflectivity of electromagnetic wave absorbers in millimetre wave frequency - Measurement methods (IEC 62431:2008); German version EN 62431:2008
2009DIN EN 62431:2009 Reflectivity of electromagnetic wave absorbers in millimetre wave frequency - Measurement methods (IEC 62431:2008); German version EN 62431:2008