GB 31604.31-2016: Translated English of Chinese Standard. GB31604.31-2016: National food safety standard - Food contact materials and products - Determination of sulfur dioxide in wood materialsThis Standard specifies the determination of the vinyl chloride and determination of migration in plastic and products for food contact materials. This Standard is applicable to the determination of vinyl chloride and determination of migration in polyvinyl chloride and vinyl chloride copolymers. This Standard is also applicable to the determination of 1,1- ichloroethane in polyvinyl chloride and polyvinyl chloride copolymers. |
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20mL headspace bottle 4°C refrigerator acidic alcoholic food simulants Analytical balance area of vinyl arithmetic mean auto headspace sampler butyl rubber gasket cap is equipped cap to seal Chloride and Determination chloride reference solution chloride stock solution concentration of vinyl copolymers detection limit Determination of Migration Determination of Vinyl Dimethylacetamide equipped with silicon flame ionization detector Food Contact Materials food simulant standard food simulant test gas chromatograph GB/T Glass bottle hydrogen flame ionization immediately use cap instrumental parameters listed limit of vinyl Manual Sample Injecting Materials and Articles methanol method to quantify Micro-syringe Migration of Vinyl migration test mix evenly obtained vinyl chloride oil-fat food simulants pipette polyvinyl chloride quantitative limit rubber or butyl sample solution silicon rubber simulant test solution standard curve standard solution Standard substance Vinyl standard working curve standard working solution successively add take acetone vinyl chloride chromatogram vinyl chloride monomer Vinyl chloride reference vinyl chloride stock