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IEC 61158-5-12 Ed. 4.0 b:2019

Industrial communication networks – Fieldbus specifications – Part 5-12: Application layer service definition – Type 12 elements
standard by International Electrotechnical Commission, 04/10/2019

IEC 61158-4-21 Ed. 2.0 b:2019

Industrial communication networks – Fieldbus specifications – Part 4-21: Data-link layer protocol specification – Type 21 elements
standard by International Electrotechnical Commission, 04/10/2019

IEC 63185 Ed. 1.0 b:2020

Measurement of the complex permittivity for low-loss dielectric substrates balanced-type circular disk resonator method
standard by International Electrotechnical Commission, 12/08/2020

IEC 60068-2-20 Ed. 6.0 b:2021

Environmental testing – Part 2-20: Tests – Test T: Test methods for solderability and resistance to soldering heat of devices with leads
standard by International Electrotechnical Commission, 03/30/2021

IEC 60335-2-30 Ed. 5.2 b:2021

Household and similar electrical appliances – Safety -Part 2-30:Particular requirements for room heaters CONSOLIDATED EDITION
standard by International Electrotechnical Commission, 03/08/2021

IEC 60364-5-54 Amd.1 Ed. 3.0 b:2021

Amendment 1 – Low-voltage electrical installations – Part 5-54: Selection and erection of electrical equipment – Earthing arrangements and protective conductors
Amendment by International Electrotechnical Commission, 04/13/2021