International Organization for Standardization (ISO)
Status
Latest
ISO 406:1987
Scope
This second edition constitutes a technical revision. Indications were written in upright lettering, but they could just as well be made in free-hand or inclined (italic) lettering without altering the meaning. For the presentation of lettering (proportions and dimensions) see ISO 3098-1. Tolerancing does not necessarily imply the use of any paticular method of production, measurement or gauging.
ISO 406:1987 history
1987ISO 406:1987 Technical drawings; Tolerancing of linear and angular dimensions
1982ISO 406:1982 Technical drawings — Linear and angular tolerancing — Indications on drawings