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See Chinese contents: GB 31604.49-2023 GB 31604.49-2023: National food safety standard - Food contact materials and products - Determination of multi-elements and determination of multi-element migration
This Standard specifies the method for the determination of arsenic, cadmium, chromium and lead, and the determination of aluminum, arsenic, barium, cadmium, cobalt, chromium, copper, iron, lithium, manganese, molybdenum, nickel, lead, antimony, tin and zinc migration in food contact materials and products.
