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
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
All Product
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).
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
HI7033L - EC 84 µS/cm@25°C - 500ml
HI7609829-2 - Dissolved Oxygen Sensor for HI9829 Multiparameter
BL981411-1 pH Mini Controller (Res 0.1pH) - 220V
HI98121 COMBO pH/ORP/°C-Tester, waterproof
Multiparameter pH/ORP/EC/Pressure/Temperature Waterproof Meter
เครื่องวัดปริมาณฟอสฟอรัส ช่วงสูง รุ่น HI706
น้ำยามาตรฐานสอบเทียบ
BL983313-1 EC Mini Controller, 0 to 1999 µS/cm, 230V
HI717 Checker HC ® - Phosphate, HR
HI98130 COMBO Tester for pH/EC/TDS/C° up to 20 mS, waterproof
HI4001-51 Ammonia Membrane Kit
HI98127 pH/°C-Tester (0.1 pH resolution) - waterproof
BL982411-1 ORP Mini Controller upto 1000mV - 230V
HI701 Checker HC ® - Free Chlorine
HI7030L - EC 12880 µS/cm@25°C - 500ml
HI98107 pHep pH -Tester (0.1 pH Resolution)
HI4007-02 ISE 100 mg/L (ppm) Chloride Std , 500 ml Bottle
HI38061 CTK Phosphate