Overview
EN ISO 7287:2002 - Graphical symbols for thermal cutting equipment (ISO 7287:2002) defines a set of principles and standardized graphical symbols used to represent thermal cutting equipment and functions in technical documentation. Prepared by ISO/TC 44 (Welding and allied processes) and adopted by CEN, the standard aims to provide uniform, language‑independent symbols for use on drawings, control panels and operating boards - including applications for oxygen cutting machines.
Key topics and requirements
- Purpose and scope: Establishes graphical symbols for thermal cutting equipment to ensure clear communication in mechanical engineering and construction drawings, diagrams, plans and technical product documentation.
- Principles of presentation: Emphasizes consistent, optically perceptible figures that convey objects or concepts independently of language (design and clarity of symbols).
- Normative references: Incorporates related rules for symbol design such as ISO 81714‑1 (design of graphical symbols for use in technical documentation - basic rules).
- Document structure: Contains a synopsis of symbols and an informative Annex A showing examples (e.g., use of symbols on an operating board for a control system for oxygen cutting machines).
- Edition and adoption: Second edition (2002) supersedes earlier versions and was approved by CEN as EN ISO 7287:2002.
Note: The standard focuses on symbol principles and standardized representation rather than equipment performance or process parameters.
Applications
EN ISO 7287:2002 is intended wherever clear, standardized symbolization of thermal cutting equipment is required:
- Technical drawings and assembly diagrams for cutting systems
- Control panel and operating board design for cutting machines (including oxygen cutting)
- User manuals, maintenance documentation and safety signage for welding and cutting equipment
- Schematics and plans used in manufacturing, fabrication and construction projects
Using these symbols improves readability, reduces misinterpretation across languages and supports compliance with international documentation practices.
Who should use this standard
- Mechanical and controls engineers specifying cutting equipment interfaces
- Technical illustrators and CAD/drawing professionals creating engineering documentation
- Manufacturers of thermal cutting and welding equipment (panel designers, documentation teams)
- Safety engineers, maintenance planners and technical writers preparing manuals and signage
- Standards bodies and procurement teams seeking consistent symbol usage
Related standards
- ISO 81714‑1 - Design of graphical symbols for use in technical documentation: Basic rules (normative reference cited by EN ISO 7287)
For implementers, EN ISO 7287:2002 is a practical reference to harmonize graphical communication of thermal cutting functions across documents, control systems and international projects.