The substances in food packaging will migrate into the food over time and become indirect food additives, so the environmental safety of these materials that can come into contact with food is directly related to the food safety and health of users. High-quality packaging materials can properly preserve high-quality food, while poor-quality packaging materials will have an adverse effect on food quality. Therefore, in order to protect the interests of enterprises and consumers, strict testing of food packaging and food contact materials must be carried out.

　▌The main testing items for food contact materials are (including but not limited to):

Enamel containers: lead, cadmium, antimony.

Stainless steel containers: lead, chromium, nickel, cadmium, arsenic.

Ceramic containers: lead, cadmium.

Aluminum containers: lead, zinc, cadmium, arsenic.

Glass containers: lead, cadmium, arsenic, antimony.

Pressure cooker sealing ring: potassium permanganate consumption evaporation residue (n-hexane water), heavy metals (measured in lead), di(2-ethylhexyl) phthalate (DEHP), butyl benzyl phthalate (BBP), dibutyl phthalate (DBP).

Other rubbers: Potassium permanganate consumption evaporation residue (n-hexane water 4% acetic acid 20% ethanol), heavy metals (measured in lead), di(2-ethylhexyl) phthalate (DEHP), butyl benzyl phthalate (BBP), phthalic acid.

Nipple (silicone): Potassium permanganate consumption evaporation residue (water 4% acetic acid) heavy metals (measured in lead), di(2-ethylhexyl) phthalate (DEHP), butyl benzyl phthalate (BBP), dibutyl phthalate (DBP).

Composite food packaging bags: potassium permanganate consumption evaporation residue (n-hexane 4% acetic acid 65% ethanol), heavy metals (measured in lead), 2.4-diaminotoluene, di(2-ethylhexyl) phthalate (DEHP), butyl benzyl phthalate (BBP), dibutyl phthalate (DBP).

Polyethylene (PE): Potassium permanganate consumption evaporation residue (n-hexane 4% acetic acid 65% ethanol), heavy metal (lead) decolorization test (ethanol, cold cooking oil soaking liquid), di (2-ethylhexyl) phthalate (DEHP), butyl benzyl phthalate (BBP), dibutyl phthalate (DBP).

Polypropylene (PP): Potassium permanganate consumption evaporation residue (n-hexane 4% acetic acid), heavy metal (lead) decolorization test (ethanol, cold cooking oil soaking liquid), di (2-ethylhexyl) phthalate (DEHP), butyl benzyl phthalate (BBP), dibutyl phthalate (DBP).

Polystyrene (PS): Potassium permanganate consumption evaporation residue (4% acetic acid 65% ethanol), heavy metal (lead) decolorization test (ethanol, cold cooking oil soaking liquid), di (2-ethylhexyl) phthalate (DEHP), butyl benzyl phthalate (BBP), dibutyl phthalate (DBP).

Polycarbonate (PC): Potassium permanganate consumption evaporation residue (water, n-hexane, 4% acetic acid, 20% ethanol), heavy metal (lead) decolorization test (ethanol, cold cooking oil immersion liquid), di(2-ethylhexyl) phthalate (DEHP), butyl benzyl phthalate (BBP), dibutyl phthalate (DBP).

Polyvinyl chloride molded products (PVC): potassium permanganate consumption evaporation residue (water, n-hexane, 4% acetic acid, 20% ethanol), heavy metal (lead) decolorization test (ethanol, cold cooking oil soaking liquid), vinyl chloride monomer, di(2-ethylhexyl) phthalate (DEHP), butyl benzyl phthalate (BBP), dibutyl phthalate (DBP).

Polyethylene terephthalate (PET): potassium permanganate consumption evaporation residue (water, n-hexane, 4% acetic acid, 65% ethanol), heavy metal (lead) decolorization test (ethanol, cold cooking oil soaking liquid), di (2-ethylhexyl) phthalate (DEHP), butyl benzyl phthalate (BBP), dibutyl phthalate (DBP).

Nylon molded products (PA): potassium permanganate consumption evaporation residue (water, n-hexane, 4% acetic acid, 20% ethanol), heavy metal (lead) decolorization test (ethanol, cold cooking oil immersion liquid), di (2-ethylhexyl) phthalate (DEHP), butyl benzyl phthalate (BBP), dibutyl phthalate (DBP).

Acrylonitrile-styrene molded products (AS) Acrylonitrile-butadiene-styrene molded products (ABS): Potassium permanganate consumption evaporation residue (water, n-hexane, 4% acetic acid, 20% ethanol), heavy metal (lead) decolorization test (ethanol, cold cooking oil soaking liquid), di(2-ethylhexyl) phthalate (DEHP), butyl benzyl phthalate (BBP), dibutyl phthalate (DBP).

Unsaturated polyester resin and its fiberglass products: potassium permanganate consumption evaporation residue (n-hexane 4% acetic acid 65% ethanol), heavy metals (measured in lead), di(2-ethylhexyl) phthalate (DEHP), butyl benzyl phthalate (BBP), dibutyl phthalate (DBP).

Melamine products: Potassium permanganate consumption evaporation residue (water) Heavy metal (in terms of lead) decolorization test (ethanol, cold cooking oil soaking liquid) Di (2-ethylhexyl) phthalate (DEHP), butyl benzyl phthalate (BBP), dibutyl phthalate (DBP).