DIN EN 60061-4:2018-09
Отменен
Lamp caps and holders together with gauges for the control of interchangeability and safety - Part 4: Guidelines and general information (IEC 60061-4:1990 + supplements A:1992, B:1994, C:1994, D:1995 + A5:1998 to A15:2017, modified); German version EN 60061-4:1992 + A1:1995 to A15:2017
— 77 стр.