2009SJ/T 11394-2009 Measure methods of semiconductor light emitting diodes
1983SJ 2355.2-1983 Method of measurement for forward voltage drop of light-emitting devices
SJ 2355.2-1983 Method of measurement for forward voltage drop of light-emitting devices was changed to SJ/T 11394-2009 Measure methods of semiconductor light emitting diodes.