4.5.5. Color/Appearance: Color/appearance of anodic coating shall be uniform and continuous. Color saturation shall be measured to the CIELAB scale in accordance with the guidelines established in ASTM D 2244. The color of the surface shall have "L*", "a*", and "b*" values as specified in Table I. It is permissible to measure a coupon if it is processed with the component and has no discernible surface difference from the component. The anodizing supplier may prepare calibrated samples or use precision instruments to measure color saturation. An example of a precision instrument is the X-Rite SP68 Sphere Spectrophotometer. Less expensive means including color scanners are available and subject to approval by Applied Materials.4.5.6. Admittance: Admittance of anodic coatings shall be measured in accordance with method defined in ASTM B457 or methods defined in ISO 2931. 4.5.7. Chemical Composition: Scanning electron microscope (SEM) equipped with energy dispersive spectrometer (EDS) shall be applied for determining the chemical composition of anodic coating. EDS detector shall be calibrated per practices recommended by instrument manufacturer. The concentration of each detected species shall be reported in wt. %.4.5.8. Crazing: Optical microscope or SEM shall be applied for determining the maximum width of craze lines. Magnification shall be no less than 1000´.4.5.9. Microhardness: Microhardness of anodic coating shall be measured in accordance with test methods defined in ASTM E384.4.5.10. Cleanliness: Surface cleanliness of anodic coatings shall be determined in accordance with methods defined in Applied Materials Specification 0250-01264.4.5.11. Visual Inspection: Visual inspection with normal vision shall be performed in accordance with the cosmetic viewing table defined in 10.5 of Applied Materials Specification 0250-01019. Unless otherwise specified, the magnification applied for validating flaws or imperfections shall be no greater than 10´.