DS/ISO 9177-2
Mechanical pencils for technical drawings – Part 2: Black leads – Classification and dimensions
active, Most Current
| Organization: | DS |
| Publication Date: | 7 June 2022 |
| Status: | active |
| Page Count: | 14 |
| ICS Code (Drawing equipment): | 01.100.40 |
| ICS Code (Miscellaneous domestic and commercial equipment): | 97.180 |
scope:
This document specifies a classification and dimensions for black leads used for mechanical pencils for technical drawings. Two types of black leads are available: - polymer leads (designated by the letter "P"); - ceramic leads (designated by the letter "C").
Document History
DS/ISO 9177-2
June 7, 2022
Mechanical pencils for technical drawings – Part 2: Black leads – Classification and dimensions
This document specifies a classification and dimensions for black leads used for mechanical pencils for technical drawings. Two types of black leads are available: – polymer leads (designated by...
Mechanical pencils for technical drawings – 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...