What is this standard about?
This is part of ISO’s geometrical products specifications series covering geometrical dimensioning and tolerancing.
Who is this standard for?
- Mechanical engineers
- Design engineers
- Designers with an interest in engineering drawing specification and geometrical dimensioning
Why should you use this standard?
It gives specifications relating to frequently occurring workpiece functional cases in design and tolerancing. For example, the maximum material requirement (MMR) covers assembleability and the least material requirement (LMR) covers minimum wall thickness of a part.
Each requirement (MMR and LMR) combines two independent requirements into one collective requirement, which more accurately simulates the intended function of the workpiece. In some cases of both MMR and LMR, the reciprocity requirement (RPR) can be added.
What’s changed since the last update?
BS EN ISO 2692: 2014 replaces the 2006 standard – it has been revised and updated by experts in line with the latest industry and technological developments.