623-6510 Total Alkalinity Titration Kit This kit contains a direct reading titrator and enough reagent for 50 tests at 200 ppm. Range is 0 - 200 ppm/ 4 ppm as CaCO3.

623-6515 Ammonia Nitrogen Kit For fresh or salt water, this Nessler Method kit contains octa-slide and enough reagent for 50 tests. Range is 0.2 - 3.0 (0.2, 0.4, 0.6, 0.8, 1.0, 1.5, 2.0, 3.0) ppm NH3-N, which is frequently used in aquaculture.

623-6520 Carbon Dioxide Tests Kit This kit contains a direct reading titrator and enough reagent for 50 tests at 50 ppm. Range is 0 - 50 ppm / 1.0 ppm CO2.

623-6525 Total Coliform Bacteria Test Kit This kit tests for the presence and absence of coliform bacteria. Intended as a screening test only, it is disposable and is meant for one-time.

623-6530 Total Hardness Titration Test Kit This kit contains acalcium, magnesium and a total hardness direct reading titrator. Also contains tablet indicators for 50 tests at 200 ppm. Range is 0 - 200 ppm / 4 ppm CaCO3.

623-6535 Nitrate Nitrogen Test Kit (Zinc Reduction) This kit contains zinc reduction octaslide and enough reagent for 50 tests. Range is 0 - 15 ppm (0, 1, 2, 4, 6, 8,10, 15 ppm) NH3-N.

623-6540 Dissolved Oxygen Kit Perfect for AP classes! Our direct reading titrator test system has a range of 0 - 10 ppm (parts per million) and a resolution of -.2 ppm O2. Meets EPA guidelines. Enough materials for 50 tests.

623-6545 pH Wide Range Test Kit See a distinct color for each pH reading from 3.0 to 10.5 on the pH scale in 0.5 units. Enough materials for 100 tests.

623-6550 Phosphate Test Kit For fresh or salt water. This kit contains ascorbic acid comparator and enough reagent for 50 tests. Range 0 - 2.0 (0, 0.2, 0.4, 0.6, 0.8, 1.0, 1.5, 2.0) ppm PO4.