Reference number
ISO 20318-1:2019
ISO 20318-1:2019
© ISO 2025
International Standard
ISO 20318-1:2019
Mechanical pencils and leads for general use — Classification, dimensions, quality and test methods — Part 1: Mechanical pencils
Edition 1
2019-02
2019-02
ISO 20318-1:2019
67662
Published
(Edition 1, 2019)
This publication was last reviewed and confirmed in 2024.
Therefore this version remains current.
Abstract
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.
