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IEC
IEC 60679-4:1997
En Vigor
1997-11-28
Quartz crystal controlled oscillators of assessed quality - Part 4:
Sectional Specification - Capability approval
IEC
IEC 62056-46:2002/AMD1:2006
En Vigor
2006-12-12
Amendment 1 - Electricity metering - Data exchange for meter reading,
tariff and load control - Part 46: Data link layer using HDLC protocol
IEC
IEC 60901:1996/AMD4:2007
En Vigor
2007-12-07
Amendment 4 - Single-capped fluorescent lamps - Performance specifications
IEC
