ISO 9177-3:1994

Mechanical pencils — Part 3: Black leads — Bending strengths of HB leads

General information

Current stage: 90.92 Effective date: Jul 5, 2021

Originator: ISO

Owner: ISO/TC 10

Type: International Standard

Scope

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

Life cycle

NOW

PUBLISHED
ISO 9177-3:1994
90.92 Standard to be revised
Jul 5, 2021

REVISED BY

IN_DEVELOPMENT
ISO/DIS 9177-3

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