ISO 20318-2:2019

Mechanical pencils and leads for general use — Classification, dimensions, quality and test methods — Part 2: Black leads

This document specifies classification, dimensions, quality and test methods for black leads used for mechanical pencils for general writing, as specified in ISO 20318-1.

OEN:

ISO

Langue:

English

Code(s) de l'ICS:

01.100.40; 97.180

Statut:

Publié

Date de Publication:

2019-03-04

Numéro Standard:

ISO 20318-2:2019