GB 31060-2014 Translated English of Chinese Standard (GB 31060-2014, GB31060-2014): [GB/T 31060-2014] Water treatment chemicals -- Aluminum sulfate [Buy--download True-PDF in 3-second: https://play.google.com/books > Sign in > This BOOK > "3-dots" > Export > Save as "*.pdf"]https://www.chinesestandard.net, 29 sept 2023 - 28 páginas This Standard specifies the requirements, classification, test methods, inspection rules, marks, labels and packaging of aluminum sulfate. This Standard applies to aluminum sulfate used as a water treatment agent. The product is mainly used for drinking water and industrial water, waste water and sewage treatment. Among them, the raw sulfuric acid used for drinking water shall be industrial sulfuric acid; aluminum-containing raw materials shall be industrial aluminum hydroxide. |
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100 mL beaker 100 mL volumetric absolute difference according to formula Add 30 mL aluminum sulfate Analysis steps arithmetic mean ascorbic acid atomic absorption spectrometry buffer solution calculated according calculated as mass Calculation of results calibration curve chloroform chromium Compute the regression content is calculated curve or regression difference of parallel Drawing of calibration grade two water grams g hollow cathode lamps hydrochloric acid solution Instruments and equipment mass concentration mass fraction measure the absorbance measurement result meet the grade Method summary milliliters mL mL of nitric mL of water mL volumetric flask nitric acid solution parallel determination results Pipette potassium borohydride Reagents and materials regression equation results is taken sample scale Shake sodium diethyldithiocarbamate specification in GB/T standard stock solution stannous chloride sulfuric acid test solution Tolerance The arithmetic total volume value is expressed volume of test water specification water to dilute xylenol orange zinc chloride standard µg/L