Measuring items |
L*a*b*, ΔL*a*b*, ΔE*, Lab, ΔLab, ΔE, XYZ, Yxy, YI (E313), YI (D1925), W (CIE), W (Lab), WB, Harzen color No. (APHA), Gardner Color, HVC, L*C*h*, ΔL*C*H*, ΔE94, ΔECMC (1 : 1), ΔECMC, (2 : 1), LCh, ΔLCH, OD, Metamerism,
Spectral reflectance, Spectral curve,
Color deviation criterion chart |
Related standards |
JIS Z 8722, ASTM E 308, ASTM E 313, ASTM D 1925, JIS Z 8729, JISZ 8730, JIS Z 8715, etc. |
Measurement accuracy |
• ΔE* : Standard deviation within 0.02
• Spectral reflectance : Standard deviation within 0.20 or less
where 30 minutes later after turning on the power,
30 times of measurements are made at 10 seconds interval against a standard white plate, and repeatability is checked. |