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See Chinese contents: GB 5009.31-2016 GB 5009.31-2016: National Food Safety Standard -- Food stuffs -- Determination of p-hydroxybenzoic acid esters in food stuffs
This Standard specifies the gas chromatography method for the methyl paraben, ethyl p-hydroxybenzoate, propyl paraben and butyl paraben in foods. This Standard is applicable to the determination of methyl paraben, ethyl phydroxybenzoate, propyl paraben and butyl paraben in soy sauce, vinegar, beverages and jams.
