DIN EN 60061-2:2009
燈頭、燈座及檢驗其互換性和安全性的量規.第2部分:燈座(IEC 60061-2-1969 + 增補件 A-1970 至 S-1997 + A18-1998至 A38-2009,修改件).德文版本EN 60061-2-1993+A1-1995至A7-1997 + A18-1998至A38-2009
Lamp caps and holders together with gauges for the control of interchangeability and safety - Part 2: Lampholders (IEC 60061-2:1969 + supplements A:1970 to S:1997 + A18:1998 to A38:2009, modified); German version EN 60061-2:1993 + A1:1995 to A7:1997 + A18