IS 12937 : 1990 Engineering metrology - Methods of testing straightness, flatness and perpendicularity
UDC 531.717.81/.86 | PGD 25 |
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Reaffirmed 2014 |
1 Scope
1.1 This standard covers the methods of examination ofstraightness, flatness and perpendicularity.
2 References
IS 2220 :1990Engineering metrology - Steel straightedges -Specification
IS 8000 : Part 1 :1985 Geometrical tolerancing on technicaldrawings:Part 1 Tolerances of form orientation, locationand run-out and appropriate geometricaldefinitions