ISO 9177-2:2022
Current
Date published:
Mechanical pencils for technical drawings — Part 2: Black leads — Classification and dimensions
This document specifies a classification and dimensions for black leads used for mechanical pencils for technical drawings.
Two types of black leads are available:
— polymer leads (designated by the letter “P”);
— ceramic leads (designated by the letter “C”).
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97.180 Miscellaneous domestic and commercial equipment
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ISO 9177-2:2022
Get this standard
Prices exclude GST
PDF
( Single user document)
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