ISO 9177-2:2022
Current
The latest, up-to-date edition.
Mechanical pencils for technical drawings — Part 2: Black leads — Classification and dimensions
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English
01-06-2022
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”).
| DocumentType |
Standard
|
| Pages |
4
|
| PublisherName |
International Organization for Standardization
|
| Status |
Current
|
| Supersedes |
| Standards | Relationship |
| SS-ISO 9177-2:2022 | Identical |
| IS/ISO 9177 : Part 2 : 2022 | Identical |
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