RECOMMENDED METHODS OF MEASUREMENT ON RECEIVERS FOR TELEVISION BROADCAST TRANSMISSIONS. PART 5: ELECTRICAL MEASUREMENTS ON MULTICHANNEL SOUND TELEVISION RECEIVERS USING THE NICAM TWO-CHANNEL DIGITAL SOUND-SYSTEM (Endorsed by AENOR in June of 1999.)
Edition 1999-06-01

Cinematography. Multichannel analogue and digital photographic sound and control records on 35 mm motion-picture prints and negatives, and digital sound-control records on 70 mm motion-picture prints and negatives. Position and width dimensions
Edition 2018-02-19

Measurement and control; electrical measuring instruments; printing devices for multi-channel strip chart recording instruments
Edition 1984-09

Multi-channel radio-frequency connectors - Part 2: Sectional specification for MQ4 series circular connectors (IEC 46F/605/CD:2021); Text in German and English
Edition 2023-06

LTE Vehicle-to-Everything (LTE-V2X) Deployment Profiles and Radio Parameters for Single Radio Channel Multi-Service Coexistence
Edition 2024-07-23

Multi-channel radio-frequency connectors - Part 2: Sectional specification for MQ4 series circular connectors (IEC 63138-2:2023); German version EN IEC 63138-2:2023
Edition 2024-09

Multi-channel radio frequency connectors - Part 3: Sectional specification for MQ5 series circular connectors (IEC 63138-3:2022); German version EN IEC 63138-3:2022
Edition 2023-08

Multi-channel radio-frequency connectors - Part 2: Sectional specification for MQ4 series circular connectors (IEC 63138-2:2020); German version EN IEC 63138-2:2021
Edition 2022-05

Multi-channel radio frequency connectors - Part 1: Generic specification - General requirements and test methods (IEC 63138-1:2019); German version EN IEC 63138-1:2019
Edition 2020-08

Multi-channel radio-frequency connectors. Sectional specification for MQ4 series circular connectors
Edition 2023-12-19