Reagents for HI 764 Checker HC ®, 25 Tests

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

Range 0:00 to 5:00 ppm | EPA Method 315 B | 0.01ppm resolution

Range 0:00 to 3:00 ppm NH3-N | Nessler Method | 0.01ppm resolution

Range 0 - 150 ppm | ferrous sulfate method | Resolution 1ppm