GB 31604.49-2023: National food safety standard - Food contact materials and products - Determination of multi-elements and determination of multi-element migration

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Scope

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.
Part 1 is applicable to the determination of arsenic, cadmium, chromium and lead in food
contact paper and cardboard materials and products, cork stoppers and bamboo and wood
products.
Part 2 is applicable to the determination of aluminum, arsenic, barium, cadmium, cobalt,
chromium, copper, iron, lithium, manganese, molybdenum, nickel, lead, antimony, tin and zinc
migration in food contact plastic materials and products, food contact paints and coatings, food
contact rubber materials and products, inks for food contact materials and products, adhesives
for food contact materials and products, food contact paper and cardboard materials, pacifiers,
enamel products, ceramic products, glass products, food contact plastic resins, food contact
metal materials and products.
Part 1 - Determination of Arsenic, Cadmium, Chromium
and Lead
Method 1 Inductively Coupled Plasma Mass Spectrometry

Basic Data

Standard ID	GB 31604.49-2023 (GB31604.49-2023)
Description (Translated English)	National food safety standard - Food contact materials and products - Determination of migration of benzophenone substances
Sector / Industry	National Standard
Classification of Chinese Standard	X09
Word Count Estimation	20,249
Date of Issue	2023-09-06
Date of Implementation	2024-03-06
Issuing agency(ies)	National Health Commission of the People's Republic of China, State Administration for Market Regulation
Summary	This standard specifies the determination method for the migration of 8 benzophenones in food contact materials and products. The first method liquid chromatography is suitable for (2-hydroxy-4-methoxyphenyl) (2-hydroxyphenyl) methanone, 2,4-dihydroxybenzophenone, (2-hydroxy-4-methoxyphenyl)phenylmethanone, 4,4'-dihydroxybenzophenone, 2-hydroxy-4-n-octyloxy benzophenone, 2-hydroxy-4-n-hexyloxybenzophenone, benzophenone and 4,4'-difluorobenzophenone in water, 4% (volume fraction) acetic acid, 10% (volume fraction) ethanol, 20 (volume fraction) ethanol, 50 (volume fraction) ethanol food simulants, and chemical alternative solvents