Mechanical pencils and leads for general use — Classification, dimensions, quality and test methods — Part 1: Mechanical pencils
|Publication Date:||1 February 2019|
|ICS Code (Drawing equipment):||01.100.40|
|ICS Code (Miscellaneous domestic and commercial equipment):||97.180|
This document specifies classification, dimensions, quality and test methods for hand-held mechanical pencils which hold and feed out a lead, and are used for general writing. It is also applicable to multifunction pens equipped with a mechanical pencil unit. However, those pencils attached to machinery instruments such as a plotter are excluded.