Intelligent Transport Systems (ITS) - Vehicular Communications - GeoNetworking - Part 4: geographical addressing and forwarding for point-to-point and point-to-multipoint communications - Sub-part 1 : media-Independent Functionality (V1.4.1)
Edition 2020-07-17

Transmission and Multiplexing (TM) - Generic requirements for synchronization networks - Part 4-1 : timing characteristics of slave clocks suitable for synchronization supply to Synchronous Digital Hierarchy (SDH) and Plesiochronous Digital Hierarchy (PDH) equipment
Edition 2000-06-01

BS EN 61158-4. ndustrial communication networks. Fieldbus specifications. Part 4-1. Data-link layer protocol specification. Type 1 elements. Part 4-2. Data-link layer protocol specification. Type 2 elements. Part 4-3. Data-link layer protocol specification. Type 3 elements. Part 4-4. Data-link layer protocol specification. Type 4 elements. Part 4-11. Data-link layer protocol specification. Type 11 elements. Part 4-12. Data-link layer protocol specification. Type 12 elements. Part 4-13. Data-lin"
Edition 2012-05-23

BS EN 62153-4-1. Metallic communication cable test methods. Part 4-1. Introduction to electromagnetic (EMC) test methods
Edition 2012-12-10

BS EN 61747-4-1. Liquid crystal display devices. Part 4-1. Matrix colour LCD modules. Essential ratings and characteristics
Edition 2013-09-03

PD IEC/TS 62933-4-1. Electric Energy Storage System. Part 4-1. Guidance On Environmental Issues
Edition 2016-11-08

BS EN 61857-41. Electrical insulation systems. Procedures for thermal evaluation. Part 41. Specific requirements for electrical insulation systems for use in dry-type high-voltage transformers with operating voltages of 1kV and above
Edition 2018-05-30

BS EN 62053-41. Electricity metering equipment (DC direct current). Particular requirements. Part 41. Static meter for active energy (class 0.5 and 1)
Edition 2020-04-22

BS EN 50065-4-1. Signalling on low-voltage electrical installations in the frequency range 3 kHz to 148,5 kHz. Part 4-1. Low voltage decoupling filters. Generic specification
Edition 2021-04-23

BS EN IEC 61643-41. Low-voltage surge protective devices. Part 41. Surge protective devices connected to DC low-voltage power systems. Requirements and test methods
Edition 2022-01-13