Abstract Preview

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.


General information

  • Status :  Published
    Publication date : 2019-03
  • Edition : 1
    Number of pages : 11
  • :
    ISO/TC 10
    Technical product documentation
  • 97.180
    Miscellaneous domestic and commercial equipment
    01.100.40
    Drawing equipment

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