Min. Order:
1
Place of origin:
China
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: 0.5% 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 humidi
[Related Keywords : brightness meter, brightness tester, whiteness meter, blue brightness test]