Whiteness is measured in terms of diffuse reflectance, which is the ratio of reflected light measured at 90deg. after passing through a suitable filter and the incident light that is generally at 45o to the surface of the sample paper, Textiles, Food items, Pigments, Tiles and Minerals Ideal for measuring whiteness & brightness Can be used to measure both whiteness & brightness by changing filters only Standard MgCO block supplied with the instrument Simple to operate.
Ordering Information; – Reflectance Meter with Blue Filter for Brightness measurement Reflectance Meter with Green Filter for Whiteness measurement- Green Tristimulus Filter- Blue Tristimulus Filter – Red Tristimulus Filter- Brightness Filter (49)