HI93705-01 Silica – Reagents – 100 Tests

The HI 775 Checker®HC is a simple, accurate, and cost effective way to measure alkalinity. Designed as a more accurate alternative to chemical test kits, the HI 775 provides quick, accurate results in four easy steps.

Range 0-999 ppb | ASTM Method D1687-92 diphenylcarbonate | Resolution 1 ppb