Aquaculture nitrite rapid test kit NO2 concentrations were measured ion content of 0.005 to 0.3 ..

The company specializes in the development, production and sales of water quality and safety testing, aquaculture content, food sterilization water quality, salinity sugar content drinks, please call or Want advice. Nitrite test kit for use Specification Description: Product Specifications: 0.005-0.3 mg / l detection times: 50 times / box Shelf Life: 2 years Storage: room temperature, a cool dry place Instructions: Test Range: 0.005-0.01-0.05- 0.10-0.15-0.20-0.25-0.30 mg / L Test Method: Rinse with water tubes tested twice, then sampled to the mark. Was added to a glass tube spoon nitrite reagent, shake to dissolve. Five minutes later, the top-down visual comparison with standard color card color, the same color tone, the nitrite content of water is measured (in terms of nitrogen, mg / liter). The colorimetric observation monocular, the better. Description: ⑴ If the sample turbidity, should be filtered before sampling. ⑵ If the nitrite content of more than color, is available free of nitrite salt (such as cold water) dilute certain multiple, and then test methods described above. ⑶ if caking agents, crushed before use does not affect the test results. Interferences: chloramines, chlorine, thiosulfate, sodium tripolyphosphate and high iron ions with significant disturbance. Alkaline water samples (pH≥11), you can add phenolphthalein solution as an indicator, dropped phosphoric acid to red disappears. Water samples have color or suspended solids, can be hydrogenated alumina suspension and filtered. Packing Details: Nitrite Reagent 2 bottles, tubes 1, a dropper, a colorimetric card, a glass spoon. Service: 陆恒生 matter if those who support the purchase of equipment warranty for one year, after product purchase, such as what problems can always phone or Want linked encountered during testing. Hangzhou Lu Hengsheng Technology Co., Ltd. is a research and development, production, marketing and related reagents water quality testing equipment business, based in Zhejiang University Huajiachi, has four-set. We have been in China water testing industry leader, our aim is to provide customers the most efficient, fastest, most affordable and most convenient testing services! Offers a comprehensive sewage discharge standards, sewage discharge standards, urban sewage treatment plant emission standards, pollutant discharge standards plating, printing and dyeing wastewater discharge standards, hospital sewage discharge standards, emissions standards inquiry