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ISO 9177-2:2022

Mechanical pencils for technical drawings — Part 2: Black leads — Classification and dimensions

Publication date:   Jun 1, 2022

General information

60.60 Standard published   Jun 1, 2022

ISO

ISO/TC 10 Technical product documentation

International Standard

01.100.40   Drawing equipment | 97.180   Miscellaneous domestic and commercial equipment

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Scope

This document specifies a classification and dimensions for black leads used for mechanical pencils for technical drawings.
Two types of black leads are available:
—    polymer leads (designated by the letter “P”);
—    ceramic leads (designated by the letter “C”).

Life cycle

PREVIOUSLY

WITHDRAWN
ISO 9177-2:1989

NOW

PUBLISHED
ISO 9177-2:2022
60.60 Standard published
Jun 1, 2022