DS/ISO 128-22:2002 Technical drawings - General principles of presentation - Part 22: Basic conventions and applications for leader lines and reference lines
This part of ISO 128 specifies general rules on the presentation of leader and reference lines and their components as well as on the arrangement of instructions on or at leader lines in all kinds of technical documents.
DS/ISO 128-22:2002 history
2002DS/EN ISO 128-20:2002 Technical drawings - General principles of presentation - Part 20: Basic conventions for lines
1983DS/ISO 128:1983 Technical drawings. General principles of presentation