The 2021 update introduces symbols for:
ISO 14617-3 (Graphical symbols for diagrams — Part 3: Measurement and control functions) was recently updated in its PDF edition. For engineers, designers, and technical communicators who rely on standardized symbols for instrumentation and control diagrams, this update brings a few practical changes worth noting. iso 146173 pdf updated
What an “updated PDF” typically means The 2021 update introduces symbols for: ISO 14617-3
"Graphical symbols for diagrams — Part 3: Connections and related devices," has been officially This new edition incorporates many symbols previously found
ISO 14617-2:2025 was recently released as a major update. This new edition incorporates many symbols previously found in separate parts of the series.
ISO 14617-3 standard, titled "Graphical symbols for diagrams — Part 3: Connections and related devices," withdrawn on April 25, 2025 ISO - International Organization for Standardization It has been replaced by ISO 14617-2:2025