Characteristics |
American ANSI Y14.5 |
Canadian CSA B78.2 / ISO 1101 |
Straightness |
|
Same |
Flatness |
|
Same |
Roundness (circularity) |
|
Same |
Cylindricity |
|
Same |
Profile of a line |
|
Same |
Profile of a surface |
|
Same |
Parallelism |
|
Same |
Perpendicularity (squareness) |
|
Same |
Angularity |
|
Same |
Position |
|
Same |
Concentricity (coaxiality) |
|
Same |
Symmetry |
|
Same |
Maximum material condition |
|
Same |
Diameter |
|
Same |
Circular runout |
|
Same |
Total runout |
|
Same |
Datum feature |
|
|
Basic dimension |
|
Same |
Regardless of feature size |
|
Same |
Projected tolerance zone |
|
Same |
Datum target |
|
Same |