ISO International Standard

Mechanical pencils and leads for general use — Classification, dimensions, quality and test methods — Part 1: Mechanical pencils

This document specifies classification, dimensions, quality and test methods for hand-held mechanical pencilss which hold and feed out a lead, and are used for general writing. It is also applicable to multi-function pens equipped with a mechanical pencil unit. However, those pencils attached to machinery instruments such as a plotter are excluded.

Purchase ISO Standard


Share this Standard