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Reagents for HI 3857 test kit (35 tests)
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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.
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Chemical test kit for the determination of nitrate in water in the range 0-50mg / l (ppm). Package size: 100 Tests
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Testkit SAR sodium determined risk into irrigation water by calculation of SAR (Sodium Adsorption Ratio) with respect to calcium and magnesium concentration. 100 Tests
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Chemical test kit for the determination of calcium in irrigation water in the range 0 to 125 mg / l (ppm) and from 0 to 250 mg / l (ppm).
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Chemical test kit for the determination of potassium in the soil in the range 0 to 50 mg / l (ppm) and 50 to 250 mg / l (ppm). 100 Tests