草莓视频在线观看电影免费观看,尤物网站在线看,泰坦尼克号未删减完整版在线观看国语,梁朝伟汤唯床戏未删减版,tushy欧美激情在线看,av免费在线观看不卡,天堂男人网

Welcome toChangzhou Tianrong Testing Technology Co., Ltd! Home |  Contact
whiteness tester
whiteness tester
Detailed instructions:

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 parameterimage