Nitrite test kit NO2- root ion content 0.01-0.5mg / l Food

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. 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! It 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 query nitrite test kit instructions Specifications Summary : Specifications: 0.01-0.5 mg / l detection times: 30 times / box Shelf Life: 2 years Storage: room temperature, a cool dry place Instructions: Take a clean colorimetric tube, add sample to be tested to the mark, add a packet NO 2- (Ⅰ), shaken, after 5 minutes plus a package NO 2- (Ⅱ), shake, 10 minutes after a visual colorimetric. Than color, colorimetric tube raised to about 1 cm from the space than the color card, top-down visual colorimetric, and the same solution tube tone gradation is the standard sample content of Nitrite ( mg / L). Note: 1) a variety of strong oxidizing and reducing agents can cause interference. 2) Cu 2 +, Fe 2+ and the measurement results of nitrate is low. 3) lead, mercury and silver and other metal ions precipitate formation caused by interference. Common interference: 1, P H value should be controlled at 5-8. 2, a variety of strong oxidizing and reducing agents. 3, Cu 2 +, Fe 2+ and the measurement results of nitrate is low. 4, lead, mercury and silver and other metal ions precipitate formation caused by interference. 5, with a color liquid itself will interfere. Available active carbon. 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.