ISO 9177-2:1989 Preview

Mechanical pencils -- Part 2: Black leads -- Classification and dimensions

Two types are available, black leads in which the binding agent is an organic polymer (designated by the letter "P"), and black leads in which the binding agent is clay (designated by the letter "C"). Classification is made according to the degree of hardness. Part 1 deals with the classification, dimensions, performance requirements and testing.


General information

  • Current status : Published
    Publication date : 1989-03
  • Edition : 1
    Number of pages : 2
  • :
    ISO/TC 10
    Technical product documentation
  • 97.180
    Miscellaneous domestic and commercial equipment
    01.100.40
    Drawing equipment

Buy this standard

Format Language
PDF
Paper
  • CHF38

Got a question?

Check out our FAQs


Customer care
+41 22 749 08 88

Opening hours:
Monday to Friday - 09:00-12:00, 14:00-17:00 (UTC+1)