GeometricalCharacteristics
| Characteristic | Specification | Symbol | Unicode character | Datum Needed |
|---|---|---|---|---|
| Cylindricity | Form |
|
U+232D | No |
| Symmetry | Location |
|
U+232F | Yes |
| Total run-out | Run-out |
|
U+2330 | Yes |
| Straightness | Form |
|
U+23E4 | No |
| Flatness | Form |
|
U+23E5 | No |
| Roundness | Form |
|
U+25CB | No |
| Coaxiality for median lines | Location |
|
U+25CE | Yes |
| Concentricity for centre points | Location |
|
U+25CE | Yes |
| Perpendicularity | Orientation |
|
U+27C2 | Yes |