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Package Size: 9.4 x 2.9 x 2.4 inches
Nitrate ions are present in trace amounts in surface water and in higher levels in some groundwater. Nitrate is found only in small quantities in domestic wastewater but can reach higher concentration (up to 30 micrograms per litre as nitrogen) in the outflow of nitrifying biological treatment plants. Excessive amounts can contribute to methaemo-globinemia: infant death and adult illness. In order to prevent this, a 10 micrograms per litre limit (as nitrogen) has been imposed on drinking water. Test kit comes with 100 packets nitrate reagent, glass cuvette and color comparison cube. Colorimetric method. Range: 0-50 micrograms per litre. Smallest increment: 10 micrograms per litre. Cadmium reduction chemical method. 100 Tests. 156 grams.
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