ISO 9177-3:1994
Mechanical pencils - Part 3: Black leads - Bending strengths of HB leads
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ISO 9177-3:1994
Standard No.
ISO 9177-3:1994
Release Date
1994
Published By
International Organization for Standardization (ISO)
Status
Be replaced
Replace By
ISO 9177-3:2022
Latest
ISO 9177-3:2022
Scope
Specifies bending strengths and a test method for black leads of HB hardness degree used for mechanical pencils for technical drawings.
ISO 9177-3:1994 history
2022
ISO 9177-3:2022
Mechanical pencils for technical drawings — Part 3: Black leads — Bending strengths of HB leads
1994
ISO 9177-3:1994
Mechanical pencils - Part 3: Black leads - Bending strengths of HB leads
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