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Note: Latest version: IEC 60335-2-21:2022 ED7
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Revised
IEC 60335-2-21:1997 ED4
IEC 60335-2-21:1997/COR1:1998 ED4
IEC 60335-2-21:1997/AMD1:1999 ED4
IEC 60335-2-21:2002+AMD1:2004 CSV ED5.1
IEC 60335-2-21:2012 ED6
IEC 60335-2-21:2012+AMD1:2018 CSV