What is ISO 128‑3 about?
ISO 128‑3 is the third part of a series of documents on Technical product documentation. ISO 128‑3 specifies the general principles for presenting views, sections and cuts applicable to various kinds of technical drawings (e.g. mechanical, electrical, architectural, civil engineering), following the orthographic projection methods specified in ISO 5456-2. Attention has also been given in ISO 128‑3 to the requirements of reproduction, including microcopying in accordance with ISO 6428.
Note: Views and sections for shipbuilding technical drawings are discussed in ISO 128-15. Views and sections for 3D models are discussed in ISO 16792.
Who is ISO 128‑3 for?
ISO 128‑3 on Technical product documentation - General principles of representation - Views, sections and cuts is useful for:
- Mechanical engineering
- Electrical engineering
- Architectural engineering
- Civil engineering
Why should you use ISO 128‑3?
Technical product documentation refers to any document that explains the use, functionality, creation and architecture of a product. You can think of it as a nuts-and-bolts “how to” guide for your users, new hires, administrators, and anyone else who needs to know how your product works.
ISO 128‑3 contains generally applicable rules for the presentation of views, sections and cuts in all kinds of technical product documentation.
ISO 128‑3 uses the orthographic projection methods specified in ISO 5456-2 to explain the general principles for presenting views, sections and cuts applicable to various kinds of technical drawings. This can be applicable to various engineering institutes to help teach technical drawing more easily and in a more comprehensible way.
What’s changed since the last update?
BS EN ISO 128‑3:2020 cancels and replaces several documents of the ISO 128 series. They are:
- ISO 128-30:2001
- ISO 128-33:2018
- ISO 128-34:2001
- ISO 128-40:2001
- ISO 128-44:2001
- ISO 128-50:2001
BS EN ISO 128‑3:2020 includes some technical changes with respect to the above documents. They are:
- Harmonization of the former parts listed above.
- Introduction of reference indication for views and enlarged features.
- Use of arc arrow in special position of views moved to a former practice annex.
