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Despite the change in document number, the core technical requirements for "Connections and related devices" remain vital. The standard (now under Part 2) specifies symbols for: iso 146173 pdf updated
Symbols are now prefixed with " GSD " (Graphical Symbols for Diagrams) followed by a four-digit number (e.g., GSD 0401 for a basic connection). Because ISO standards are protected by copyright, they
Specific lines for main, auxiliary, and flexible pipelines. iso 146173 pdf updated
The presentation structure was redesigned to make it easier for CAD users to find specific symbols.