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: Symbols now use a "GSD" prefix (e.g., GSD nnnn) to distinguish them on the ISO Online Browsing Platform (OBP) .
ISO 14617-3:2004 is primarily aimed at the petroleum, petrochemical, and natural gas industries. However, its principles and guidelines can be beneficial for any process industry that seeks to enhance data management, improve interoperability, and leverage digital technologies.
If you specifically need the technical content that was in ISO 14617-3, it covers symbols for: iTeh Standards Functional Connections
Use ISO 14617-2:2025 for the actual library of symbols.
The withdrawal of ISO 14617 and the adoption of ISO 81714 was driven by the need for:
If you just need to read symbols for a specific project → check if your employer already has an ISO subscription or use IEC 60617 as a free alternative.