Reference number
ISO 20318-1:2019
ISO 20318-1:2019
© ISO 2024
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
Publicado
(Edición 1, 2019)
Esta publicación se revisó y confirmó por última vez en 2024.
Por lo tanto, esta versión es la actual.
Resumen
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.
