Specifies performance requirements for ballasts excluding resistance types for use on a.c. supplies up to 1000 V at 50 ot 60 Hz, associated with tubular fluorescent lamps with preheated cathodes operated with or without a starter switch and having rated wattages, dimensions and characteristics as specified in Publication 81. It complies with complete ballasts and their component parts such as resistors, transformers and capacitors.

IEC 60082 : 2ED 91

IEC 82 : 84 AMD 1 86

GOST R IEC 60921 : 2011 - Identical

DS EN 60921 : 2005 AMD 1 2006 - Identical

NEN 10921 : 91 AMD 2 1995 - Identical

UNE EN 60921 : 2006 - Identical

NEN EN IEC 60921 : 2005 AMD 1 2006 - Identical

PN EN 60921 : 2005 AMD 1 2006 - Identical

SANS 60921 : 2.01ED 2006(R2011) - Identical

BS EN 60921 : 2004 - Identical

NF EN 60921 : 2005 AMD 1 2006 - Identical

DIN EN 60921 : 2007 - Identical

SN EN 60921 : 2004 AMD 1 2006 - Identical

AS 2643-1991 - Similar to

I.S. EN 60921:2005 - Identical

VDE 0712-11 : 2007 - Identical

CEI 34-4 : 2ED 1989 - Identical