2015SJ/T 2215-2015 Measuring methods for semiconductor photocouplers
1982SJ 2215.2-1982 Method of measurement for forward voltage of semiconductor photocouplers (diodes)
SJ 2215.2-1982 Method of measurement for forward voltage of semiconductor photocouplers (diodes) was changed to SJ/T 2215-2015 Measuring methods for semiconductor photocouplers.