Technical drawings -- Dimensioning -- General principles, definitions, methods of execution and special indications
This standard has been revised by ISO 129-1:2004.
Replaces ISO-Recommendation R 129-1959 of which it constitutes a technical revision. Applicable to all kinds of technical drawings (mechanical, electrical, architectural, civil engineering, etc.). The specified general principles shall be followed to facilitate the international exchange of drawings in technical fields. Specialized practices are not covered adequately. The simplified figures merely illustrate the text; they are not intended to reflect actual usage.