ISO-20318-2 › Mechanical pencils and leads for general use - Classification, dimensions, quality and test methods - Part 2: Black leads
ISO-20318-2
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1ST EDITION
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CURRENT
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This document specifies classification, dimensions, quality and test methods for black leads used for mechanical pencils for general writing, as specified in ISO 20318-1.
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Document Number
ISO 20318-2:2019
Revision Level
1ST EDITION
Status
Current
Publication Date
March 1, 2019
Committee Number
ISO/TC 10