Back

ISO 9177-3:2022

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

General information
Valid from 26.01.2022
Directives or regulations
None
Standard history
Status
Date
Type
Name
26.01.2022
Main
30.06.1994
Main
This document specifies bending strengths and a test method for black leads of HB hardness degree used for mechanical pencils for technical drawings.
*
*
*
PDF
43.97 € incl tax
Paper
43.97 € incl tax
Standard monitoring