Mechanical standardization of semiconductor devices - Part 1: General rules for the preparation of outline drawings of discrete devices (IEC 60191-1:2018); German version EN IEC 60191-1:2018
Edition 2018-10

Measuring relays and protection equipment - Part 181: Functional requirements for frequency protection (IEC 60255-181:2019); German version EN IEC 60255-181:2019
Edition 2020-02

Scales and sizes for plotting frequency characteristics and polar diagrams (IEC 60263:2020); German version EN IEC 60263:2020
Edition 2021-10

Sound system equipment - Part 3: Amplifiers (IEC 60268-3:2018); German version EN IEC 60268-3:2018
Edition 2019-02

Sound system equipment - Part 4: Microphones (IEC 60268-4:2018); German version EN IEC 60268-4:2018
Edition 2019-08

Sound system equipment - Part 16: Objective rating of speech intelligibility by speech transmission index (IEC 60268-16:2020); German version EN IEC 60268-16:2020
Edition 2021-10

Sound system equipment - Part 21: Acoustical (output-based) measurements (IEC 60268-21:2018); German version EN IEC 60268-21:2018
Edition 2019-11

Sound system equipment - Part 22: Electrical and mechanical measurements on transducers (IEC 60268-22:2020); German version EN IEC 60268-22:2020
Edition 2021-10

Sound system equipment - Part 23: TVs and monitors - Loudspeaker systems (IEC 60268-23:2023); German version EN IEC 60268-23:2023
Edition 2024-03

Sound system equipment - Part 24: Headphones and earphones - Active acoustic noise cancelling characteristics (IEC 60268-24:2023); German version EN IEC 60268-24:2024
Edition 2024-06