IS 8000 Pt.1-1976
Tolerances of shape and position in engineering drawings Part Ⅰ General principles, symbols, indications on drawings

Standard No.

IS 8000 Pt.1-1976

Release Date

1977

Published By

IN-BIS

Latest

IS 8000 Pt.1-1976

Scope

This standard specifies the symbols for tolerancing of form and of position and the method of their indication on general engineering drawings. 1.1 These tolerances of form and of position are to be specified only where they are functionally essential. 1.2 When only a tolerance of size is specified, this tolerance also limits certain errors of form and of position. The actual surfaces of the manufactured part may then deviate from the specified geometrical form on condition that they remain within the tolerances of size. If the errors of form shall remain within other limits, a tolerance of form shall be specified. 1.3 A tolerance of form or of position may be specified even if no tolerance of size is given. 1.4 The indication of tolerances of form and of position does not necessarily imply the use of any particular method of production, measurement or gauging.

IS 8000 Pt.1-1976 history

• 1977 IS 8000 Pt.1-1976 Tolerances of shape and position in engineering drawings Part Ⅰ General principles, symbols, indications on drawings