ISO 10628-2-2012 PDF

Full title and description

ISO 10628-2:2012 — Diagrams for the chemical and petrochemical industry — Part 2: Graphical symbols. This part provides standardized graphical symbols for preparing process and piping diagrams used in chemical and petrochemical plant documentation; it is a collective application of the ISO 14617 series.

Abstract

Defines the graphical symbols required for preparation of flow diagrams and related drawings in the chemical and petrochemical industries. The standard supports consistent representation of equipment, piping, valves, instrumentation and control items and is intended for use in process flow diagrams (PFDs), piping and instrumentation diagrams (P&IDs) and similar documents.

General information

• Status: Published (International Standard; confirmed).
• Publication date: December 2012.
• Publisher: International Organization for Standardization (ISO).
• ICS / categories: 01.080.30; 71.020; 75.020 (graphical symbols and process industry categories).
• Edition / version: Edition 1 (2012-12).
• Number of pages: 51 (official ISO pagination).

Key bibliographic and lifecycle metadata as published by ISO (status, date, edition and pagination).

Scope

Specifies graphical symbols for the preparation of diagrams used in the chemical and petrochemical industry (equipment, piping, valves, instruments, and control items). It is an application of the ISO 14617 series and does not apply to electrotechnical diagram symbols (for electrotechnical symbols see IEC 60617). The standard is intended for use on diagrams that illustrate the construction and function of processing plants.

Key topics and requirements

• Standardized graphical symbols for equipment (vessels, pumps, compressors, heat exchangers, columns, tanks, etc.).
• Symbols for piping elements, valves, fittings and connections used in PFDs and P&IDs.
• Instrumentation and control symbols to represent measurements, sensors, controllers and control loops.
• Grouping and classification of symbols consistent with the ISO 14617 graphical-symbols family.
• Intended to ensure unambiguous, interoperable diagrams for design, construction, operation and maintenance (contains several hundred symbols; community resources publish compilations of the symbol sheets).

Typical use and users

Used by process engineers, P&ID drafters, plant designers, instrumentation & control engineers, technical authors and documentation teams preparing process flow diagrams, piping and instrumentation diagrams, utility and utility-distribution diagrams, and other plant documentation for planning, construction, commissioning, operation and maintenance. National adoption bodies also publish harmonized versions for regional use.

Related standards

Closely related documents include ISO 10628-1 (Specification of diagrams), the ISO 14617 series (general graphical symbols for diagrams), and sector or discipline standards such as IEC 60617 for electrotechnical symbols and ISO 15519 series for process-industry diagram specification/metadata. ISO 10628-2 is the graphical-symbols part of the ISO 10628 family.

Keywords

graphical symbols, process diagrams, piping and instrumentation diagrams, PFD, P&ID, chemical industry, petrochemical, ISO 14617, instrumentation, valves, equipment symbols

FAQ

Q: What is this standard?

A: ISO 10628-2:2012 is the part of ISO 10628 that specifies graphical symbols for diagrams used in the chemical and petrochemical industries (equipment, piping, valves, instruments and control items).

Q: What does it cover?

A: It covers the graphical representation (symbol shapes and grouping) of process equipment, piping elements, valves, instrumentation and control items for use on flow diagrams, PFDs and P&IDs; it is not intended for electrotechnical symbols.

Q: Who typically uses it?

A: Process and chemical engineers, P&ID drafters, instrumentation and control engineers, technical authors and plant documentation teams use it to produce consistent, unambiguous diagrams for design, construction, operation and maintenance.

Q: Is it current or superseded?

A: ISO 10628-2:2012 is the published Part 2 edition (2012). Users should confirm any national adoptions or later revisions; ISO standards are subject to periodic review.

Q: Is it part of a series?

A: Yes — ISO 10628 is a multi-part standard (Part 1: Specification of diagrams; Part 2: Graphical symbols) and Part 2 is aligned with the broader ISO 14617 family of graphical-symbol standards.

Q: What are the key keywords?

A: Graphical symbols, process diagrams, P&ID, PFD, chemical industry, petrochemical, instrumentation, valves, ISO 14617.