ISO 9177-2:1989 PDF
Mechanical pencils — Part 2: Black leads — Classification and dimensions
Title (English):
ISO 9177-2:1989
Mechanical pencils — Part 2: Black leads — Classification and dimensions
- Document status:
- Withdrawn
- Format:
- Electronic (PDF)
- Number of pages:
- 4
- Publication date:
- March 16, 1989
- Edition:
- ISO IS 9177 edition 1 version 1
- ICS:
- 01.100.40
Description (English):
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.
Technical details
- Technical committee
- ISO/TC 10 - Technical product documentation
- SKU
- ISO 9177-2:1989
