BSI BS EN 60061-2 + A50 Lamp caps and holders together with gauges for the control of interchangeability and safety Part 2: Lampholders - AMD 9695: November 1997; AMD 10187: February 1999; AMD 10582: December 1999; AMD 11009: July 2001; AMD 13244: May 27, 2002; AMD 14108: January 13, 2003; AMD 14570: September 30, 2003; AMD 14836: January 12, 2004; AMD 15486: April 15, 2005; AMD: June 30, 2010; AMD: May 31, 2012; AMD: June 30, 2013; AMD: May 31, 2015; AMD: February 29, 2016