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See Chinese contents: GB 31604.50-2020 GB 31604.50-2020: National food safety standard - Food contact materials and articles - Determination of nonylphenol migration
This Standard specifies the liquid chromatography-mass spectrometry/mass spectrometry method for nonylphenol migration of food contact materials and articles. This Standard is applicable to the determination of nonylphenol of food contact materials and products with water, 4% (volume fraction) acetic acid solution, 10% (volume fraction) ethanol solution, 20% (volume fraction) ethanol solution, 50% (volume fraction) ethanol solution, olive oil, 95% (volume fraction) ethanol solution as food simulant OR the determination of nonylphenol in the soaking solution obtained by using 95% (volume fraction) ethanol solution, isooctane chemical substitute solvent in a migration test.
