Measuring and control; electrical measuring instruments; terminal markings for switchboard meters, panel meters and measuring transducers for the measurement of power and power factor
Edition 1983-10

Heat recovery ventilators and energy recovery ventilators - Testing and calculating methods for seasonal performance factor - Part 2: Sensible cooling recovery seasonal performance factors of heat recovery ventilators
Edition 2023-09

Heat recovery ventilators and energy recovery ventilators - Testing and calculating methods for seasonal performance factor - Part 3: Annual sensible heating and cooling recovery performance factor of heat recovery ventilators
Edition 2024-01

Direct acting indicating analogue electrical measuring instruments and their accessories - Part 5: Special requirements for phase meters, power factor meters and synchroscopes (IEC 60051-5:2017) (german version)
Edition 2019-06-01

Standard Test Method for Dissipation Factor and Permittivity (Dielectric Constant) of Mica
Edition 2017

Aircraft; Four-wheel-drive tow tractors; Performance requirements factors for design
Edition 1985-03

Power capacitors - Low-voltage power factor correction banks (IEC 61921:2003); German version EN 61921:2003
Edition 2004-02

Power capacitors - Low-voltage power factor correction banks (IEC 33/589/CDV:2016); German version prEN 61921:2016
Edition 2016-11

Potentiometers for use in electronic equipment - Part 5: Sectional specification - Single-turn rotary low-power wirewound and nonwirewound potentiometers (IEC 60393-5:2015); German version EN 60393-5:2016
Edition 2016-12

Dielectric and resistive properties of solid insulating materials - Part 2-1: Relative permittivity and dissipation factor - Technical frequencies (0,1 Hz to 10 MHz) - AC Methods (IEC 62631-2-1:2018); German version EN IEC 62631-2-1:2018
Edition 2018-12