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ISO 9177-2:2022
Mechanical pencils for technical drawings
Part 2: Black leads — Classification and dimensions
Part 2: Black leads — Classification and dimensions
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Summary
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”).
Notes
60.60 : Norme internationale publiée
Technical characteristics
| Publisher | International Organization for Standardization (ISO) |
| Publication Date | 06/01/2022 |
| Edition | 2 |
| Page Count | 4 |
| EAN | --- |
| ISBN | --- |
| Weight (in grams) | --- |
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01/06/2022
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