BS 1646-2:1983

Symbolic representation for process measurement control functions and instrumentation. Specification for additional basic requirements | Status: Confirmed, Current

1 Scope and field of application This Part of BS 1646 is an extension of Part 1, which is limited to identification of instrument functions. It includes additional symbols and is intended for the communication of measurement and control functions among instrument specialists and other engineers involved with vessels, piping, layout design and operation. The symbols are used on piping and instrumentation diagrams and engineering line diagrams.