This standard was last reviewed and confirmed in 2021. Therefore this version remains current.
Forms one part of four which provide a universal means of communication between the various interests involved in the design, manufacture, installation and operation of measurement and control equipment used in the process industries. This part establishes a symbols system for use in depicting the basic functions. The system has been limited to the identification of instrument functions and does not provide means of illustrating specific instruments. The definitions are used solely for the purpose of application and understanding of the symbol system.
Status: PublishedPublication date: 1977-07
Edition: 1Number of pages: 10
Technical Committee: ISO/TC 10/SC 10 Process plant documentation
Buy this standard
|std 1 61|
|std 2 61||Paper|
A standard is reviewed every 5 years
Stage: 90.92 (To be revised)
Will be replaced byUnder development
Got a question?
Check out our FAQs
+41 22 749 08 88
Monday to Friday - 09:00-12:00, 14:00-17:00 (UTC+1)
Keep up to date with ISO
Sign up to our newsletter for the latest news, views and product information.