Calibration Standard for HI 729 Checker HC ®
All Product
Range 0:00 to 3:00 ppm NH3-N | Nessler Method | 0.01ppm resolution
All Product
Range 0:00 to 2:50 ppm | ascorbic acid method | Resolution 0.01ppm
All Product
Range 0.00 - 9.99 ppm NH3-N | Nessler Method | 0.01ppm resolution
All Product
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.
All Product
Range 0:00 to 5:00 ppm | EPA Method 315 B | 0.01ppm resolution
All Product
Range 0 - 150 ppm | ferrous sulfate method | Resolution 1ppm
All Product
Range 0.0 - 15 ppm | Molybdenum Blue Method | 0.1ppm resolution
All Product
Range 0:00 to 2:00 ppm | EPA method 340.1 | 0.01ppm resolution
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HI70630L - RfE - Fleisch - 500ml 
HI755 Checker HC ® - MARINE Alkalinity (dHK) 
HI739 Checker HC ® - Fluoride. HR 
