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.
Colorimetric
Chemical test kit for the determination of nitrate in water in the range 0-50mg / l (ppm). Package size: 100 Tests
All Product
The HANNA test kit for ozone determines the ozone concentration in water via checker disc. The reaction between ozone and the reagent causes a pink tint in the sample which is proportional to the ozone concentration.
Chemical test kits
Chemical test kit for the determination of pH in the range 4-10pH. Package size: 300 tests
Chemical test kit for the determination of phosphate in the range 0:00 to 1:00 mg / / 0.0-5.0 mg / L / 0-50 mg / L (ppm).
Checker Disc
Test kit for the chemical determination of silicate in the range 0-1 mg / l (ppm). 100 Tests
Test kit for the chemical determination of silicate in the range 0-40mg / l / 0 800 mg / l (ppm). 100 Tests
HI705 Checker HC ® - Silica, LR
HI70032C - 1382 mg/l (ppm) TDS@25°C Cert. - 25x20ml
HI70080C - 800 mg/l (ppm) TDS@25°C Zert. - 25x20ml
HI736 Checker HC ® - Phosphorous, ULR
เครื่องวัดปริมาณฟอสฟอรัส ช่วงต่ำมาก รุ่น HI736
เครื่องวัดคลอรีน
HI761 Checker HC ® - Total Chlorine, ULR
HI70031C - EC 1413 µS/cm@25°C Zert. - 25x20ml
เครื่องวัดค่าเหล็ก รุ่น HI721
HI711 Checker HC ® - Total Chlorine
HI5004 - 4.01 pH@25°C - TQ - 500ml
เครื่องวัดปริมาณคลอรีนรวม รุ่น HI711
HI93102 Water Analysis Meter (with Turbidity up to 50NTU)
HI38054 CTK Ozone