Fire hazard testing - Part 1-21 : guidance for assessing the fire hazard of electrotechnical products - Ignitability - Summary and relevance of test methods
Edition 2017-01-21

Measuring relays and protection equipment - Part 121: Functional requirements for distance protection
Edition 2014-12-26

Wind energy generation systems - Part 12-1 : power performance measurements of electricity producing wind turbines
Edition 2022-10-14

Wind energy generation systems - Part 12-1 : power performance measurements of electricity producing wind turbines
Edition 2017-08-19

General requirements for Home and Building Electronic Systems (HBES) and Building Automation and Control Systems (BACS) - Smart grid - Application specification - Interface and framework for customer - Part 12-1 : interface between the CEM and Home/Buildin
Edition 2018-07-27

Connectors for electronic equipment - Tests and measurements - Part 12-1 : soldering tests - Test 12a : solderability, wetting, solder bath method
Edition 2006-08-01

Multi-element metallic cables used in analogue and digital communications and control - Part 12-1 : sectional specification for screened cables characterised from 1 MHz up to 2 000 MHz - Horizontal and building backbone cables
Edition 2017-08-25

Flexible insulating sleeving - Part 3: specifications for individual types of sleeving - Sheets 121 to 124 : extruded silicone sleeving
Edition 2003-12-01

Optical fibres - Part 1-21 : measurement methods and test procedures - Coating geometry
Edition 2002-07-01

Optical fibre cables - Part 1-21 : generic specification - Basic optical cable test procedures - Mechanical tests methods
Edition 2015-05-15