The instrument conforms to GB3978-2008: "Standard lighting body and geometric conditions". Simulated D65 lighting body lighting. d/o illumination is used to observe the geometry, the diameter of the diffused ball is 150mm, the diameter of the test hole is 30mm (or 19mm), and the light absorber is provided to eliminate the influence of the reflected light of the sample mirror. The peak wavelength of the spectral power distribution of the R457 whiteness optical system is 457nm and the half-height width is 44nm. The Y10 optical system conforms to GB/T3979-2008 "Measurement Method of object Color";
Determination of ISO whiteness (R457 Blu-ray whiteness) and Z whiteness (Rz)
Determination of fluorescent brightening produced by emission of fluorescent substances (sample contains fluorescent brightening)
Measure the whiteness of the powder
The opacity OP, light scattering coefficient S, light absorption coefficient A, transparency and ink absorption value were measured
Measure the brightness stimulus value Y10, that is, the green light diffuse reflection factor Ry
Determination of lead core concentration