Railway applications. Fixed installations. D.C. switchgear - Part 7-1: Measurement, control and protection devices for specific use in d.c. traction systems. Application guide Ingestion-build-48974 It also specifies the requirements

It also specifies the requirements for marking

BS 3693 gives recommendations for the design of scales and indexes of analogue indicating instruments in which an index moves in relation to a fixed array of scale marks to display the value of a measured quantity

means of verification and information for use to ensure an appropriate level of safety for agricultural and forestry tractors and self-propelled machines with functions allowing highly automated operations

Specific recommendations are given on board and strip

ISO 22419 provides you with requirements

Railway applications. Fixed installations. D.C. switchgear - Part 7-1: Measurement, control and protection devices for specific use in d.c. traction systems. Application guide Ingestion-build-48974 It also specifies the requirements