Standard ISO 9177-3:2022-ed.2.0 26.1.2022 preview

ISO 9177-3:2022-ed.2.0

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

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STANDARD published on 26.1.2022


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The information about the standard:

Designation standards: ISO 9177-3:2022-ed.2.0
Publication date standards: 26.1.2022
SKU: NS-1048716
The number of pages: 4
Approximate weight : 12 g (0.03 lbs)
Country: International technical standard
Category: Technical standards ISO

Annotation of standard text ISO 9177-3:2022-ed.2.0 :

Description / Abstract: This document specifies bending strengths and a test method for black leads of HB hardness degree used for mechanical pencils for technical drawings.



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