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Working jointly, ISO and IEC have formalized parts of the ISQ by giving information and definitions concerning quantities, systems of quantities, units, quantity and unit symbols, and coherent unit systems, with particular reference to the ISQ.
English: The PDF contains 296 symbols described in the standard ISO 10628-2:2012 titled "Diagrams for the chemical and petrochemical industry — Part 2: Graphical symbols". Symbols are grouped in the same way that the standard does. Since SVG does not support multi-page formatting, individual SVG files have been uploaded.
ISO 80000-1:2022 revised ISO 80000-1:2009, which replaced ISO 31-0:1992 and ISO 1000:1992. [22] This document gives general information and definitions concerning quantities, systems of quantities, units, quantity and unit symbols, and coherent unit systems, especially the International System of Quantities (ISQ). [3]
English: The vector graphic contains SVG renditions of groups 26-29 of ISO 10628-2:2012(en), "Diagrams for the chemical and petrochemical industry — Part 2:Graphical symbols".
English: The vector graphic contains SVG renditions of groups 1-2 of ISO 10628-2:2012(en), "Diagrams for the chemical and petrochemical industry — Part 2:Graphical symbols". The groups are: 1: vessels and tanks 2: columns with internals Links to all sheets in the set: All sheets Sheet 1 (PDF,SVG) Sheet 2 (PDF,SVG) Sheet 3 (PDF,SVG)
PDF is a standard for encoding documents in an "as printed" form that is portable between systems. However, the suitability of a PDF file for archival preservation depends on options chosen when the PDF is created: most notably, whether to embed the necessary fonts for rendering the document; whether to use encryption; and whether to preserve additional information from the original document ...
The ISQ defines the quantities that are measured with the SI units. [23] The ISQ is formalised, in part, in the international standard ISO/IEC 80000, which was completed in 2009 with the publication of ISO 80000-1, [24] and has largely been revised in 2019–2020. [25]
ISO 10628 Diagrams for the chemical and petrochemical industry specifies the classification, content, and representation of flow diagrams. It does not apply to electrical engineering diagrams.