Hardness Reagent Kit for 100 Tests (200-500 mg/L), Hanna Instruments, HI93735-01

HI 93735-01 is a reagent kit for the determination of total hardness in the range of 200 to 500 mg/L as CaCO₃ by the colorimetric method.  The kit consists of three reagents and has enough reagents for 100 tests.