IEC TR 60721-4-4:2001/AMD1:2003
IEC TR 60721-4-4:2001/AMD1:2003 Amendment 1 - Classification of environmental conditions - Part 4-4: Guidance for the correlation and transformation of the environmental condition classes of IEC 60721-3 to the environmental tests of IEC 60068 - Stationary use at non-weatherprotected locations
