Time and control code
standard by International Electrotechnical Commission, 03/30/2010

Electricity metering equipment (a.c.) – Particular requirements – Part 21: Static meters for active energy (classes 1 and 2)
standard by International Electrotechnical Commission, 06/17/2020

Uninterruptible power systems (UPS) – Part 1: Safety requirements CONSOLIDATED EDITION
standard by International Electrotechnical Commission, 05/20/2021

Semiconductor devices – Part 14-5: Semiconductor sensors – PN-junction semiconductor temperature sensor
standard by International Electrotechnical Commission, 02/11/2010

Power transformers – Part 10-1: Determination of sound levels – Application guide
standard by International Electrotechnical Commission, 03/24/2016

Semiconductor devices – Discrete devices – Part 5-4: Optoelectronic devices – Semiconductor lasers
standard by International Electrotechnical Commission, 04/01/2022

Insulation co-ordination – ALL PARTS
standard by International Electrotechnical Commission, 01/06/2020

Semiconductor devices – Integrated circuits, Part 23-5: Hybrid integrated circuits and film structures – Manufacturing line certification – Procedure for qualification approval
standard by International Electrotechnical Commission, 10/03/2003

Medical electrical equipment – Part 2-27: Particular requirements for the safety, including essential performance, of electrocardiographic monitoring equipment
standard by International Electrotechnical Commission, 08/29/2005

Direct acting indicating analogue electrical measuring instruments and their accessories – Part 2: Special requirements for ammeters and voltmeters
standard by International Electrotechnical Commission, 08/30/2018