Stationary lead-acid batteries – Part 21: Valve regulated types – Methods of test
standard by International Electrotechnical Commission, 02/05/2004

Medical electrical equipment – Part 2-68: Particular requirements for the basic safety and essential performance of X-ray-based image-guided radiotherapy equipment for use with electron accelerators, light ion beam therapy equipment and radionuclide beam therapy equipment
standard by International Electrotechnical Commission, 09/04/2014

Industrial-process control valves – Part 2-3: Flow capacity – Test procedures
standard by International Electrotechnical Commission, 12/16/2015

Power transformers – Part 16: Transformers for wind turbine applications
standard by International Electrotechnical Commission, 08/25/2011

Power line communication systems for power utility applications – Part 2: Analogue power line carrier terminals or APLC
standard by International Electrotechnical Commission, 07/26/2017

Optical fibres – Part 1-47: Measurement methods and test procedures – Macrobending loss
standard by International Electrotechnical Commission, 10/11/2017

Household and similar electrical appliances – Safety – Part 2-61: Particular requirements for thermal storage room heaters CONSOLIDATED EDITION
standard by International Electrotechnical Commission, 04/29/2009

Radio-frequency connectors. Part 21: Two types of radio-frequency connectors with inner diameter of outer conductor 9.5 mm (0.374 in) with different versions of screw coupling – Characteristic impedance 50 ohms (Types SC-A and SC-B)
standard by International Electrotechnical Commission, 01/01/1985

Instrument transformers – Part 7: Electronic voltage transformers
standard by International Electrotechnical Commission, 12/17/1999

Wind turbines – Part 24: Lightning protection
standard by International Electrotechnical Commission, 07/03/2019