91311 cutting fluid dipstick nitrite NO2 content of the residual test imported MN

The company sales agents in Germany MN water quality testing products, but also the production and sale of MN same products, using MN original equipment and technology, please call or Want advice. Introduction: Germany imported nitrite test strips, rapid detection of nitrite is the best solution. 1-minute simple test can be obtained reliable test results. Scope: MN nitrite test strips are widely used in environmental monitoring, waste water treatment and other industries. MN nitrite test strip (91,311) is also applied to metal coolant, cutting fluids, cooling lubricants detection. Specific parameters: Product name nitrite test strips (low concentration) type semi-quantitative test strips boxed product specifications, 100 / box Color reaction white - purple Origin Germany unit scale 0-1-5-10-20-40- 80 mg / l NO 2- Item No. 91311 is valid for two years and a half to use: 1. Remove the required amount of the test strip and immediately cover the lid. Do not touch the reaction zone of the test strip. 2, the strip was immersed in the test solution PH value of 1-13, and remove the test strip 1 second. 3,30 seconds after the color of standard reaction zone of the test strip contrast than the color card. The presence of nitrite, paper red. Features:? Fast:? Into the water sample, remove, easy reading: no other additional equipment precise:? Interference from other substances durable:? Below 30 ℃ can be stored for 2 years and a half the interference: the upper part of the test area (near the test strip handheld end) play produce nitrite interference warning. Method to eliminate interference nitrite is the 10 ml test solution and 1 tablespoon ammonia acid (product number: 918 973) were mixed, repeatedly shaking test nitrate concentration after 2 minutes. This method can be used to detect 1000 mg / l nitrite contained 10 mg / l nitrate. Interference (nitrite): If a strong acid solution (pH <1) with sodium acetate adjusted, if strong alkaline solution (pH> 13) with citric acid adjusted to pH 3-5 larger ion concentration will produce less interference. :> 1000 mg / l Br-, Br O 3-, Cl-, Cl O 3-, F-, J-, M o 7 O 246, NO 3-, OC N-, PO 43-, SO 32-, SO 42-, Se O 32-, WO 42, Acetate (acetate), oxa late (oxalate), tar tr ate (tartrate), cit rate (citrate), su cc inate (succinate ), Ag +, Al 3+, As 3+, Ba 2+, Be 2+, CO 2+, Cd 2+, Cr 3+, Cu 2+, Hg 2+, K +, Li +, Mg 2+, Mn 2 +, Na +, Ni 2+, Pb 2+, Sb 3+, Tl +, Zn 2+,> 250 mg / l S 2 O 3 2-, S 2 O 52-,> 100 mg / l [Fe (CN) 6] 2-, S 2 O 42-, SC N-, As co rb ate (ascorbate) Storage: Avoid exposing the test strips sunny and humid environment. Below 30 ℃ stored in a dry environment Note: Do not touch the paper 1. Remove the dipstick when the reaction ends, to avoid contamination of test strips, affect the test results 2. Remove the required number of test strips, the remaining strips sealed liquid sample 3. Good requirement seems colorless or light-colored, color is too dark liquid before testing, do first bleaching treatment. 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! ?