ISO 9177-2:2022
Mechanical pencils for technical drawings — Part 2: Black leads — Classification and dimensions
| Edition date: |
2022-06-01
In Force
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|---|---|
| Available languages: | English |
| 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”). La présente partie de l'ISO 9177 spécifie une classification et les dimensions des mines graphite utilisées dans les porte-mine à dessin. Deux types de mines graphite sont disponibles :
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| ICS: | 97.180-Miscellaneous domestic and commercial equipment, 01.100.40-Drawing equipment |
| CTN: | ISO/TC 10 - 45986 |
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Standards Cancellations |
Anula a ISO 9177-2:1989 |










