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ISO 9177-2:1989

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

Standard Details

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

Status : WITHDRAWN
Standard Type: Main
Document No: ISO 9177-2:1989
Document Year: 1989
Pages: 2
Edition: 1
  • Section Volume:
  • ISO/TC 10. Technical product documentation
  • ICS:
  • 01.100.40 Drawing equipment
  • 97.180 Miscellaneous domestic and commercial equipment

Life Cycle

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WITHDRAWN
ISO 9177-2:1989
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