I notice you're asking about (not 146173). Here’s a helpful review and guidance on the updated version.
The standard ISO 14617-3:2004 specifically focuses on "Design and supply of structured digital information for process plant" and is part of a series of standards (ISO 14617) that deals with various aspects of design and documentation for process plants. This part of the standard emphasizes the importance of structured digital information in the design, construction, and operation of process plants. iso 146173 pdf updated
Historically, ISO 14617-3 focused specifically on "Connections and related devices". Under the new 2025 structure, these symbols are being merged into a more comprehensive Part 2 to streamline technical documentation. I notice you're asking about (not 146173)
: You can purchase and download the most up-to-date PDF directly from the ISO Standards Store ANSI Webstore : For those in the U.S., the ANSI Webstore often provides the same documents as licensed PDFs. National Standards Bodies : Check with your local authority, such as (Germany), which often sell updated translations. Please note: This part of the standard emphasizes the importance
Historical context and purpose