Industrial communication networks – Fieldbus specifications – Part 3-21: Data-link layer service definition – Type 21 elements
standard by International Electrotechnical Commission, 04/24/2019

Residual current operated circuit-breakers without integral overcurrent protection for household and similar uses (RCCBs) – Part 1: General rules CONSOLIDATED EDITION
standard by International Electrotechnical Commission, 06/23/2006

Electromagnetic compatibility (EMC) – Part 4-5: Testing and measurement techniques – Surge immunity test
standard by International Electrotechnical Commission, 05/15/2014

Insulated bushings for alternating voltages above 1000 V
standard by International Electrotechnical Commission, 08/18/2003

Risk management – Risk assessment techniques
standard by International Electrotechnical Commission, 06/13/2019

Fibre optic interconnecting devices and passive components – Interface standard for fibre management systems – Part 1: General and guidance
standard by International Electrotechnical Commission, 11/27/2019

Low-voltage switchgear and controlgear – Part 7-3: Ancillary equipment – Safety requirements for fuse terminal blocks
standard by International Electrotechnical Commission, 04/20/2009

VSB – Parallel Sub-system Bus of the IEC 60821 VMEbus
standard by International Electrotechnical Commission, 12/30/1988

Test on gases evolved during combustion of materials from cables – Part 3: Measurement of low level of halogen content by ion chromatography
standard by International Electrotechnical Commission, 03/19/2018

Safety in electroheat installations – Part 1: General requirements
standard by International Electrotechnical Commission, 05/26/2004