HI93734-01 Chlorine HR Free & Total – Reagents – 100 Tests

The HI 761 uses an adaptation of the USEPA method 330.5. The reaction between the chlorine and DPD reagent causes a pink tint in the sample.

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 0.0 - 15 ppm | Molybdenum Blue Method | 0.1ppm resolution

Range 0 - 500 PCU | Platinum Cobalt method | Resolution 5 PCU