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prSSH ISO 9177-2:2022

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

General information

40.60     May 10, 2024

DPS

DPS/KT 304

International Standard

97.180     01.100.40  

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

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IN_DEVELOPMENT
prSSH ISO 9177-2:2022
40.60 Close of voting
May 10, 2024

Related project

Adopted from ISO 9177-2:2022

Adopted from ISO 9177-2:2022