Added modifiers that provide specific constraints, flow directions, or states to a basic symbol.
The major updates affecting connections and pipelines include: ISO 14617-3 - X401, Crossing of symbols for connections
Are you updating your for a specific industry, such as HVAC or chemical processing, and need advice on implementing these new GSD prefixes?
ISO 14617-3:2002 - Graphical symbols for diagrams — Part 3 iso 146173 pdf updated
Then search for (latest) or the specific part number. The full family includes parts for fluid power, electrical diagrams, and process measurement symbols.
The presentation structure was redesigned to make it easier for CAD users to find specific symbols.
: Redundant or overly specialized electrical and instrumentation lines were purged. Purely electrotechnical symbols have defaulted entirely to the IEC 60617 database standard. The full family includes parts for fluid power,
With the 2025 update, this content has been fully integrated into the new symbol library. The 2002 version (ISO 14617-3:2002) is now marked by ISO as a "Standard to be revised" and is destined for withdrawal. It is not the current version of the standard.
The series consists of 15 parts, each covering a specific category of components or functions. In many cases, the ISO 14617 series has superseded older, fragmented national standards, providing a single source of truth for over a thousand standardized symbols.
A: Organizations can implement the standard by conducting a gap analysis, providing training and awareness programs, developing and updating procedures, implementing surveillance systems and monitoring procedures, and continuously reviewing and updating their systems and procedures. Expected changes include: : Outdated symbols
By combining Part 3 with other parts, engineers can build a comprehensive and professional schematic representation.
ISO/TC 10 (Technical Product Documentation) is already working on a 2026 amendment. Expected changes include:
: Outdated symbols, particularly in instrumentation and control, have been removed, while new symbols from standards like ISO 10628-2 have been added. Quick Guide to the Updated Parts General rules & registration Published March 2025 Graphical symbols library Published 2025 (Supersedes Part 3) Why Does This Matter for Your Projects?