IS 2102 : Part 2 : 1993/ISO 2768-2 : 1989 General tolerances Part 2 Geometrical tolerances for features without individual tolerance indications
| UDC 621.753.1 : 744.4 | PGD 37 |
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| Reaffirmed 2014 |
National Foreword
This Indian Standard (Part 2) which is identical with ISO 2768-2: 1989 `General tolerances - Part 2 : Geometrical tolerances forfeatures without individual tolerance indications was adopted bythe Bureau of Indian Standards on the recommendations of theEngineering Standards Sectional Committee (LM 01) and approval ofthe Light Mechanical Engineering Division Council.
General geometrical tolerances apply to all geometricaltolerance characteristics excluding cylindercity, profile of anyline, profile of any surface, angularity, co-axiality, positionaltolerances and total run. The standard specifies generalgeometrical tolerances for three tolerance classes. This standardis also intended to simplify drawing indication.
In the adopted standard certain terminology and conventions arenot identical with those used in the Indian Standard, attention isespecially drawn to the following:
a) Comma (,) has been used as a decimal marker while in IndianStandards, the current practice is to use point (.) as the decimalmarker.
b) Wherever the words `International Standard appear, referringto this standard, they shall be read as `Indian Standard.
In the adopted standard reference appears to certaininternational standards for which Indian Standards also exists. Thecorresponding Indian Standards which are to be substituted in theirplace are listed below along with their degree of equivalence forthe editions indicated:
References
| International Standard | Corresponding Indian Standard | equivalence
| ISO 1101 :1983 | IS 8000 : Part 1 : 1985 Geometricaltolerance ontechnical drawings: Part 1 Tolerances of formorientation, location and run-out andappropriate geometrical definitions |
| ISO 2768-1 : 1989 | IS 2102 : Part 1 : 1993 Generaltolerances: Part 1 Tolerances for linearand angulardimensions without individual toleranceindications |
| ISO 5459 :1981 | IS 10721 : 1983 Datum and datum systemsforgeometrical tolerancing on technical drawings |
| ISO 8015 :1985 | IS 12160 : 1987 Technical drawings -Fundamentaltolerancing principles |