• ISA5.1, Instrumentation Symbols and Identification


    ISA5.1 Scope

    The standard is suitable for use whenever any reference to an instrument is required in the chemical, petroleum, power generation, air conditioning, metal refining, and numerous other industries.

    The standard is intended to provide sufficient information to enable anyone reading a flow diagram and having a reasonable amount of plant knowledge to understand the means of measurement and control of the process without having to go into the details of the instrumentation that require the knowledge of an instrument specialist.

    ISA5.1 Purpose

    The purpose of this standard is to establish a uniform means of designating instruments and instrumentation systems used for measurement and control. To this end, a designation system is presented that includes symbols and an identification code.

    The differing established procedural needs of various organizations are recognized, where not inconsistent with the objectives of the standard, by providing alternative symbolism methods. A number of options are provided for adding information or simplifying the symbolism, if desired.

    The ISA5.1 subcommittee's latest publication is the updated ANSI/ISA-5.1-2009Instrumentation Symbols and Identification.

    For more information about ISA5.1, contact Charley Robinson, ISA Standards.


     

  • Contacts

    Voting Member
    Grover Allen


    Voting Member
    Allen Amdur


    Voting Member
    Gerald Barta


    Voting Member
    Boleslaw Boczkaj


    Voting Member
    Ben Burdett


    Voting Member
    Lowell Christensen


    Voting Member
    John Dobbins


    Voting Member
    Narinder Dogra


    Voting Member
    J. Doyle


    Voting Member
    Kenneth Drayton


    Voting Member
    Walter Driedger


    Voting Member
    Georg Erk


    Voting Member
    J. Garrod


    Voting Member
    Ted Hamler


    Voting Member
    Ralph Hartman


    Voting Member
    Samuel Herb


    Voting Member
    Alvin Iverson


    Voting Member
    James (Jim) Jamison


    Voting Member
    Daniel Lee


    Voting Member
    Ian Milne


    Voting Member
    William Mostia


    Voting Member
    Ganesier Ramachandran


    Voting Member
    Mark Robertson


    Voting Member
    David Roney


    Voting Member
    S. Sankaran


    Voting Member
    Rasik Shah


    Voting Member
    Edith Welch


    Voting Member
    Robert Wood


    Staff Contact
    Charley Robinson