ISO/FDIS 9177-3

Mechanical pencils for technical drawings

Specifies bending strengths and a test method for black leads of HB hardness degree used for mechanical pencils for technical drawings.

Porte-mines pour le dessin technique

General Information

• Status: Published
• ICS: 01.100.40 - Drawing equipment
• ICS: 97.180 - Miscellaneous domestic and commercial equipment
• Technical Committee: ISO/TC 10 - Technical product documentation
• Drafting Committee: ISO/TC 10 - Technical product documentation
• Current Stage: 5060 - Close of voting Proof returned by Secretariat
• Completion Date: 22-Dec-2021

RELATIONS

• Revised: ISO 9177-3:1994 - Mechanical pencils
• Effective Date: 26-Nov-2021

Standards Content (sample)

FINAL
INTERNATIONAL ISO/FDIS
DRAFT
STANDARD 9177-3
ISO/TC 10
Mechanical pencils for technical
Secretariat: SIS
drawings —
Voting begins on:
2021-10-27
Part 3:
Voting terminates on:
Black leads — Bending strengths of
2021-12-22
HB leads
Partie 3: Mines graphite — Résistance à la flexion des mines HB
RECIPIENTS OF THIS DRAFT ARE INVITED TO
SUBMIT, WITH THEIR COMMENTS, NOTIFICATION
OF ANY RELEVANT PATENT RIGHTS OF WHICH
THEY ARE AWARE AND TO PROVIDE SUPPOR TING
DOCUMENTATION.
IN ADDITION TO THEIR EVALUATION AS
Reference number
BEING ACCEPTABLE FOR INDUSTRIAL, TECHNO-
ISO/FDIS 9177-3:2021(E)
LOGICAL, COMMERCIAL AND USER PURPOSES,
DRAFT INTERNATIONAL STANDARDS MAY ON
OCCASION HAVE TO BE CONSIDERED IN THE
LIGHT OF THEIR POTENTIAL TO BECOME STAN-
DARDS TO WHICH REFERENCE MAY BE MADE IN
NATIONAL REGULATIONS. © ISO 2021
---------------------- Page: 1 ----------------------
ISO/FDIS 9177-3:2021(E)
COPYRIGHT PROTECTED DOCUMENT
© ISO 2021

All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may

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Published in Switzerland
© ISO 2021 – All rights reserved
---------------------- Page: 2 ----------------------
ISO/FDIS 9177-3:2021(E)
Contents Page

Foreword ........................................................................................................................................................................................................................................iv

Introduction .................................................................................................................................................................................................................................v

1 Scope ................................................................................................................................................................................................................................. 1

2 Normative references ..................................................................................................................................................................................... 1

3 Terms and definitions .................................................................................................................................................................................... 1

4 Bending strength ................................................................................................................................................................................................. 1

4.1 General ........................................................................................................................................................................................................... 1

4.2 Bending strength of HB leads for mechanical pencils ......................................................................................... 1

5 Test method ............................................................................................................................................................................................................... 2

6 Test report .................................................................................................................................................................................................................. 3

Bibliography ................................................................................................................................................................................................................................ 4

iii
© ISO 2021 – All rights reserved
---------------------- Page: 3 ----------------------
ISO/FDIS 9177-3:2021(E)
Foreword

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bodies (ISO member bodies). The work of preparing International Standards is normally carried out

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electrotechnical standardization.

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