The Hanna Instruments HI 705 is a hand-held colorimeter for testing low ranges of silica. It is designed as an accurate alternative to chemical test kits.
The HANNA HI 770 Checker®HC is accurate and affordable. This portable handheld colorimeter features a resolution of 1 ppm (200 points) and ±2 ppm ±5 % of ...
เครื่องวิเคราะห์สารละลาย Photometer เครื่องวิเคราะห์สารละลาย > Silica is found in all natural waters in the dissolved mineral form. Silica is only slightly soluble in water