M00000977
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ISO DIS 20318-2 2017 Edition, June 23, 2017 Mechanical pencils and leads for general use - Classification, dimensions, quality and test methods - Part 2: Black leads
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Availability date: 07/13/2021
Description / Abstract: This part of ISO 20318-2 specifies classification, dimensions, quality and test methods for black leads used for mechanical pencils for general writing specified in ISO 20318-1.