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Nitrites are an intermediate product in the nitrogen cycle and are produced during ammonia oxidation with water, or even direct from industrial water. They should not be present in drinking water.
Nitrites are usually present in cooling tower water where they act as a corrosion inhibitor, but in most other water Nitrite is undesirable:- in high concentrations, they can be harmful to the environment and to mankind.
The Hanna Nitrite Meter is extremely easy to use and gives direct readout on the digital display in mg/L(ppm). To obtain a reading simply take a small sample of water in the glass cuvette supplied, add the reagent (not included), and then place the cuvette in the measuring chamber of the instrument.
HI 93707 show the nitrite concentration directly in the 0.00 to 0.35 mg/L ranges. They can also determine sodium nitrite concentrations by simply multiplying the readings by 4.93 (HI 93707).
| Instruction Manual |
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| Range |
0.00 to 0.35 mg/L |
| Resolution |
0.01 mg/L |
| Accuracy |
±0.02 mg/L ±4% of reading |
| Light Source |
LED 470 nm |
| Light Life |
Life of the instrument |
| Light Detection |
Silicon Photocell |
| Battery Type / Life |
1 x 9V / approx. 40 hours of continuous use;
auto-off after 10 minutes of non use |
| Environment |
0 to 50°C (32 to 122°F); RH max 95% non-condensing |
| Dimensions |
180 x 83 x 46 mm (7.1 x 3.3 x 1.8") |
| Weight |
290 g (10 oz.) |
| Method |
Adaptation of the EPA method 354.1;
The reaction between nitrite and the reagent
causes a pink tint in the sample |
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