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Colorimetric tape test device for testing drinking water. nTest the composition ofitrates (NO3) anditrites (NO2) in water. nA set of two tape test devices: one foritrate testing and the other foritrate testing. nNitrates anditrites are hazardous pollutants found in well water that are very harmful to human health. Excessive presence ofitrates in drinking water can [โฆ]
pH testers โ easy to use! Pipette test kit for measuring the pH level in water.The set includes a bottle of 10 ml of reagent solution, and a colored template to compare the results.Use: pour 50 ml of test water into a clear container. Add two drops of reagent solution, mix and compare the color [โฆ]