# ISO 9177-3:1994 — Withdrawn and superseded ISO standards

For ISO 9177-3:1994, item title is Mechanical pencils — Part 3: Black leads — Bending strengths of HB leads; status code is 9599; successor is ISO 9177-3:2022; withdrawn / published date is 1994-06-30, recorded from its source on 2026-08-05.

- **Identifier:** ISO 9177-3:1994 _(verified: appears in the quote below)_
- **Item title:** Mechanical pencils — Part 3: Black leads — Bending strengths of HB leads _(verified: appears in the quote below)_
- **Status code:** 9599 _(verified: appears in the quote below)_
- **Successor:** ISO 9177-3:2022
- **Withdrawn / published date:** 1994-06-30 _(verified: appears in the quote below)_

## What the source says

> 20426,IS,,ISO 9177-3:1994,Mechanical pencils — Part 3: Black leads — Bending strengths of HB leads,Porte-mine — Partie 3: Mines graphite — Résistance à la flexion des mines HB,1994-06-30,1,"['01.100.40','97.180']",ISO/TC 10,9599,,[83354],"['en','fr']",3,<p>Specifies bending strengths and a test method for black leads of HB hardness degree used for mechanical pencils for technical drawings.</p>

## Source

- https://isopublicstorageprod.blob.core.windows.net/opendata/_latest/iso_deliverables_metadata/csv/iso_deliverables_metadata.csv

Last verified: 2026-08-05. Review by: 2027-02-01.
Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).