1997IEC 60851-4:1997 Winding wires - Test methods - Part 4: Chemical properties
1996IEC 60851-4:1996 Winding wires - Test methods - Part 4: Chemical properties
1992IEC 60851-4/AMD1:1992 Methods of test for winding wires; part 4: chemical properties; amendment 1
1985IEC 60851-4:1985 Methods of test for winding wires. Part 4 : Chemical properties
IEC 60851-4/AMD1:1992 Methods of test for winding wires; part 4: chemical properties; amendment 1 was changed to IEC 60851-4:1996 Winding wires - Test methods - Part 4: Chemical properties.