Nitrite indicator test sticks
Nitrite /Nitrate Semiquantitive Determination Test Strips
Range
0-80 nitrite ppm
0-250 nitrite ppm
Colour change
white to red-violet
Gradation
Nitrate: 0 - 10 - 25 - 50 - 100 - 250 - 500 mg/l NO2-
Nitrite: 0 - 1 - 5 - 10 - 20 - 40 - 80 mg/l NO2-