Summarize

This instrument is suitable for testing the whiteness of whit color, near white object or powder surface. It can measure the whiteness value consistent with the visibility accurately. As for the object processed by flourescent brightener, the instrument can quantitatively reflect the value of whiteness whitened by flourescent brightener. Besides, the instrument can also accurately measure the opaqueness of paper. The instrument can be used for making whiteness measurement on textile, printing and dyeing product, paint, coating, paper, plastic product, white cement, starch and other things. 

standards ：JJG 512- 2002, GB2913,GB5950,GB8940. 1, GB12097,GB13025. 2。

Technical parameter