| Dimensional Control |
| Feature | Description | Tolerance |
| .xxx | Size
| +.13mm (.005") |
| .xx | Size | +.26mm (.010") |
| x/x (Fractions) | Size | +.38mm (.015") |
| x° | Angle | + 2° |
| Surface Finish | 1.6 micron (63µ") Ra |
| Roundness | Must not exceed Maximum Material Condition perfect form boundary | 1/2 the feature size tolerance but not less than 5 microns (.0002") |
| Perpendicularity | | .1mm/mm (.004"/inch)* |
| Parallelism | | .05mm/mm (.002"/inch)* |
| Position | For undimensioned feature locations generally on center line of part | Within the width or diameter tolerance not less than .13mm (.005") FIM |
| Flatness | Multiplied by the longest element of a feature. Minimum size of shortest element 2.6mm (.1") | .13mm/mm (.005"/inch) |
| Straightness/Camber | | .08mm/mm (.003"/inch) |
| Fillets | | 1mm (.04") Max. |
| Edge Break | Radius or 45°+5° chamfer | 1mm (.04") Max. |
| Glaze and Metallizing | Surface Coatings | Features will be measured prior to coating application.
Typical glaze thickness will vary from .1mm (.004") to .4mm (.015"). Typical metallizing thickness will vary from a few thousand angstroms to .05mm (.002") depending upon type. |
| *Not less than .013mm (.0005") on features less than 25.4 mm (1") |
| Visual Criteria |
| Feature | Description | Tolerance |
| Blemish | Stained or discolored area associated with normal processing | 1.5mm (.06") Max. |
| Chip | Open: Material removal along an edge.
Closed: Damaged area along an edge where material is still in place. | 1.5mm (.06") width across face by 1.5mm (.06") deep into face by unlimited length along edge. |
| Crack | Fracture line without separation visible to the naked eye | None allowed |
| Foreign Material | Particles adhering to surfaces | None allowed |
| Holes/Pits | Voids in surfaces | 1.5mm (.06") Max in any direction |
| Inclusion | Foreign material embedded in ceramic body or a stain not associated with normal processing | 1.5mm (.06") Max in any direction |
| Porous Area | Area that retains dye and upon sectioning shows evidence of dye penetration | None allowed |
| Surface Marks | Scratches, grind marks or other long shallow grooves cut into a surface | Not exceeding dimensional limits of a feature |
