ISO 9177-2:2022
(Main)Mechanical pencils for technical drawings — Part 2: Black leads — Classification and dimensions
Mechanical pencils for technical drawings — Part 2: Black leads — Classification and dimensions
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”).
Porte-mines pour le dessin technique — Partie 2: Mines graphite — Classification et dimensions
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 : les mines polymère (désignées par la lettre «P») les mines céramique (désignées par la lettre «C»)
Tehnični svinčniki za tehnično risanje - 2. del: Grafitni vložki - Razdelitev in mere
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Standards Content (Sample)
INTERNATIONAL ISO
STANDARD 9177-2
Second edition
2022-06
Mechanical pencils for technical
drawings —
Part 2:
Black leads — Classification and
dimensions
Porte-mines pour le dessin technique —
Partie 2: Mines graphite — Classification et dimensions
Reference number
ISO 9177-2:2022(E)
© ISO 2022
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ISO 9177-2:2022(E)
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© ISO 2022
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© ISO 2022 – All rights reserved
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ISO 9177-2:2022(E)
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Classification . 2
5 Dimensions .2
5.1 Diameters . 2
5.2 Lengths . 3
6 Designation . 3
Bibliography . 4
iii
© ISO 2022 – All rights reserved
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ISO 9177-2:2022(E)
Foreword
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