|
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
|