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ISO 9177-2:2022

Mechanical pencils for technical drawings - Part 2: Black leads - Classification and dimensions
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ISO 9177-2:2022

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

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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”).

SDO ISO: International Organization for Standardization
Document Number ISO 9177
Publication Date Not Available
Language en - English
Page Count
Revision Level
Supercedes
Committee ISO/TC 10
Publish Date Document Id Type View
Not Available ISO 9177-2:2022 Revision