ISO 14617-3:2002 - Graphical symbols for diagrams — Part 3
remains available in many archives for historical reference, organizations should transition to the updated ISO 14617-2:2025
It is widely used for creating P&IDs (Piping and Instrumentation Diagrams), as well as HVAC, chemical, and manufacturing plant schematics.
Practical implications for users
"Application examples" are now officially called "Symbol examples" to simplify terminology.