DIN EN 60061-3:2017 灯头、灯座及检验其互换性和安全性量规.第3部分:测量仪器(IEC 60061-3-1969+补充件A-1970至U-1997+A20-1998至A49-2014+A50-2015+A51-2015,修订本).德文版本EN 60061-3-1993+A1-1995至A7-1997+A20-1998至A49-2015+A50-2015+A51-2015
Lamp caps and holders together with gauges for the control of interchangeability and safety - Part 3: Gauges (IEC 60061-3:1969 + supplements A:1970 to U:1997 + A20:1998 to A49:2014 + A50:2015 + A51:2015, modified); German version EN 60061-3:1993 + A1:1995