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See Chinese contents: GB 31604.41-2016 GB 31604.41-2016: Determination of antimony in polyester resin and products for food containers and packaging materials
This Standard specifies the graphite furnace atomic absorption spectrometry, atomic fluorescence spectrometry, inductively coupled plasma mass spectrometry, inductively coupled plasma emission spectrometry, and malachite green spectrophotometry for the determination of stibium migration after food contact materials and articles are soaked in food simulants. This Standard is applicable to the determination of stibium migration in food contact materials and articles.
