2009SJ/T 11394-2009 Measure methods of semiconductor light emitting diodes
1983SJ 2355.6-1983 Method of measurement for luminous flux of light-emitting devices
SJ 2355.6-1983 Method of measurement for luminous flux of light-emitting devices was changed to SJ/T 11394-2009 Measure methods of semiconductor light emitting diodes.