ISO 3511-1 1977 Edition, January 1, 1977
Process Measurement Control Functions and Instrumentation - Symbolic Representation - Part I: Basic Requirements First Edition
Additional Comments: ENGLISH * SAME AS BS 1646 P1
Published By:International Organization for Standardization (ISO)
SCOPE AND FIELD OF APPLICATION
Part I of this International Standard establishes a symbols system for use in depicting the basic functions of measurement and control equipment in relation to the plant with which it is associated. The system has been intentionally limited to the identification of instrument functions and does not provide means of illustrating specific instruments.