61643-21 AMD 1 - : References

This document references the following standards:
IEC 60060-2
IEC 60068-2-38
IEEE C62.64
IEEE C62.36
ITU-T K.28
ITU-T K.21
ITU-T K.12
IEC 60721-3-3
ITU-T K.20
This document is referenced by the following standards:
BSI BS EN 62305-4
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