The HANNA nitrate test kit for soil and irrigation water makes it possible to determine the need for nitrogen fertilization. It also obtains the best crop response and avoids over-fertilization.
Nitrate is reduced to nitrite in the presence of cadmium. The nitrite thus produced reacts with the reagent to yield an orange compound. The amount of color developed is proportional to the concentration of nitrate present in the aqueous sample.
The HANNA nitrate-nitrogen test can be performed the whole year round, but testing is particularly recommended during spring and late spring, when rainfall and temperature related bursts of microbiological activity often have great influence on the availability of nitrate-nitrogen.
Order Information:
HI 38050 test kit comes with 200 packets nitrogen reagent, checker disc, glass vials with caps (2), 10 g calcium sulfate, demineralizer bottle with filter cap for 12 L, soil sieve, 50 mL plastic test tube with screw cap, large funnel, 100 paper filter discs, brush, 50 mL calibrated vessels (2), 2 g sample cup, 3 mL plastic pipette and spoons (2)
Manual: Download
Specification :
| Method | Checker Disc | |
| Range | water: 0-50 mg/L soil: 0-60 mg/L |
|
| Smallest Increment | water: 1 mg/L soil: 2 mg/L |
|
| Chemical Method | Cadmium reduction Cadmium reduction |
|
| Number of Tests | 100 100 |
|
| Weight | 1026 g |
HI70032C - 1382 mg/l (ppm) TDS@25°C Cert. - 25x20ml
HI145-20 Thermometer (°C) with T-shaped (300mm)
HI3831T CTK Chlorine Total
HI764 Checker HC ® - Nitrite, ULR
HI713 Checker HC ® - Phosphate, LR
HI705 Checker HC ® - Silica, LR
HI736 Checker HC ® - Phosphorous, ULR
BL981411-1 pH Mini Controller (Res 0.1pH) - 220V
HI1297D - pH/ORP-Electrode
HI6007-01 - 7.010 pH@25°C - MQ - 1000ml
เครื่องวัดปริมาณแอมโมเนีย ช่วงสูง รุ่น HI733
Calibration Standard HI 771 Checker HC ®
HI775 Checker HC ® - Alkalinity in fresh water (dKH)
HI11310 Digital pH-Electrode, Glass, refillable (edge)
HI701 Checker HC ® - Free Chlorine
Reagents for HI 708 Checker HC ®, 25 Tests
HI70038C - 6.44 g/l (ppt) TDS@25°C Zert. - 25x20ml
BL983317-1 EC Mini Controller upto 10.00 mS/cm, 230V
BL983315-1 TDS Mini Controller 0.0 to 199.9 mg/L (ppm) - 230V
HI7039L - EC 5000 µS/cm@25°C - 500ml
HI5522 Research Grade pH/ORP/ISE and EC/TDS/Salinity/Resistivity Meter with CAL Check™
CTK Chrom VI 

