GB 5009.226-2016: Translated English of Chinese Standard. GB5009.226-2016: National food safety standard - Determination of Hydrogen Peroxide Residual Quantity in Foods
https://www.chinesestandard.net, 21 Ιουλ 2018 - 5 σελίδες
This Standard specifies methods of determining hydrogen peroxide residual quantity in foods. This Standard is applicable to the determination of hydrogen peroxide residual quantity in foods, such as prepackaged milk, beverage, soy product, waterish logged product and chicken feet, etc.
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100 mL volumetric accordance with Formula Acetic acid activated carbon add water ammonium molybdate Ammonium sulfate arithmetic mean calculated in accordance cm colorimetric ware conical flask consumed in volumetric content of hydrogen Determination of Hydrogen expressed in mL filter paper Hydrogen Peroxide Residual hydrogen peroxide standard iodine iron ion later usage mass of hydrogen mL of potassium mL of sulfuric mL of water mL volumetric flask paper to filter permanganate standard solution Peroxide Residual Quantity peroxide standard stock place it evenly potassium ferrocyanide solution potassium iodide potassium permanganate standard Quantity in Foods Reserve the filtrate Respectively add 5.0 sample solution sample treatment solution sodium thiosulfate standard solution and place standard stock solution standard titration solution standard working solution starch sulfuric acid solution thiosulfate standard solution thiosulfate standard titration third-grade water Titanium Salt Colorimetry titanium solution volume of sample volume of sodium water to dilute water to dissolve zinc acetate solution