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 |
เครื่องวัดปริมาณคลอรีนอิสระ รุ่น HI701
Reagents for HI 755 Checker HC ®, 25 Tests
BL983317-1 EC Mini Controller upto 10.00 mS/cm, 230V
HI3810 CTK Dissolved Oxygen
Reagents for HI 771 Checker HC ®, 25 Tests
น้ำยามาตรฐานสอบเทียบ
เครื่องวัดค่าเหล็ก รุ่น HI721
HI733 Checker HC ® - Ammonia, HR
CTK Chrom VI
HI70038C - 6.44 g/l (ppt) TDS@25°C Zert. - 25x20ml
เครื่องวัดปริมาณแอมโมเนีย ในน้ำ รุ่น HI715
HI708 Checker HC ® - Nitrite, HR
HI740217 Lab Safety Shield for COD Measurement
HI983302N EC Indicator up to 9.99 mS with Electrode GRO'CHEK
HI770 Checker HC ® - Silica, HR
FC210B - pH Elektrode
HI3831T CTK Chlorine Total 

