ISO 9177-3:2022
Mechanical pencils for technical drawings — Part 3: Black leads — Bending strengths of HB leads ISO 9177-3:2022
Publication date:
Jan 26, 2022
General information
60.60
Standard published
Jan 26, 2022
ISO
ISO/TC 10
Technical product documentation
International Standard
01.100.40
Drawing equipment
| 97.180
Miscellaneous domestic and commercial equipment
Scope
This document 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 9177-3:2022
60.60
Standard published
Jan 26, 2022
