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ISO
ISO/IEC/IEEE 8802-21-1:2018
En Vigor
2018-04-27
Information technology — Telecommunications and information exchange
between systems — Local and metropolitan area networks — Part 21-1:
Media independent services
IEC
IEC 62054-21:2004+AMD1:2017 CSV
En Vigor
2017-01-30
Electricity metering (AC) - Tariff and load control - Part 21:
Particular requirements for time switches
IEC
IEC 60598-2-2:2023
En Vigor
2023-01-16
Luminaires - Part 2-2: Particular requirements - Recessed luminaires and
recessed air-handling luminaires
ISO
ISO/IEC 15476-1:2002
En Vigor
2002-10-28
Information technology — CDIF semantic metamodel — Part 1: Foundation
