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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6060 - International Standard published
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ISO 9177-2:2022 - Mechanical pencils for technical drawings — Part 2: Black leads — Classification and dimensions Released:6/1/2022
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Second edition
Mechanical pencils for technical
drawings —
Part 2:
Black leads — Classification and
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)
© ISO 2022
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on
the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address below
or ISO’s member body in the country of the requester.
ISO copyright office
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CH-1214 Vernier, Geneva
Phone: +41 22 749 01 11
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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
© ISO 2022 – All rights reserved

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ISO 9177-2:2022(E)
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