Reagents for Freshwater Alkalinity HI 775 Checker HC ®, 25 Tests

Range 0 - 20 ppm | ESPA method | Resolution 0.1ppm

Range 0 - 300 ppm in salt water | Colorimetric Method | Resolution 1 ppm

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

Range 0.0 - 99.9 ppm NH3-N | Nessler Method | 0.1ppm resolution