China Paper Whiteness Testing Meter, Find details about China Whiteness Meter, Whiteness Tester from Paper Whiteness Testing Meter
NO. | ITEM | SPECIFICATION |
1 | This instrument complies with GB3978-83; Standard illuminator and illuminating--viewing conditions. | |
2 | Simulate D65 illuminator to illuminate. Adopt d/o illuminating--viewing geometrical coanditions. Diameter of the diffusion sphere is 150mm and diameter of the testing hole is 25mm. | |
3 | Light absorber is provided to eliminate the effect of specular reflection. Peak wavelength of spectral power distribution of R457 whiteness optical system is 457nm and its half-width is 44nm. | |
4 | Measure and display the whiteness, Fluorescent whiteness (whitening rate) and opacity (%) etc. digitally. | |
5 | Indication error: | 0.50% |
6 | Sample size: | Test plate diameter should not be less than 30mm while sample thickness should not exceed 40mm. |
7 | Power supply: | 160V-260V, 50Hz, 0.3A |
8 | Measure time: | 3s |
9 | Working condition: | Temp.0-40oC, relative humidity<85%. |
10 | Size and weight: | L×W×H=365×260×425mm, 11kg |