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KFDA (Korean Food Grade)

Product introduction： The testing requirements for KFDA Korean food grade materials are:1. General requirements for Synthetic Resin (general standard) Total lead (excluding silicone) test items:Total cadmium (excluding silica gel), total mercury (excluding silica gel), hexavalent chromium (excluding silica gel), heavy metal dissolution (calculated as lead), potassium permanganate consumption (excluding PF, UF, MF, POM), evaporation residue in distilled water, 4% in acetic acid, evaporation residue in 20% in ethanol, evaporation residue in n-hexane, evaporation residue (except for Polyactive acid)2. Test items for total lead in PVC and polyvinyl chloride:Total cadmium, total mercury, hexavalent chromium, heavy metal leaching (calculated as lead), potassium permanganate consumption, evaporation residue in distilled water, 4% acetic acid, evaporation residue in ethanol, 20% ethanol, evaporation residue in n-hexane, dibutyltin (VCM), vinyl chloride monomer, o-benzene migration (water, 4% acetic acid, 20% ethanol, and n-heptane), determination of trimethyl phosphate in PVC materials3. PP, PBT, EVA, PPS, PLA/PBSA, PMP (polymethylene), PVA (Polyvinyl Alcohol), PB-1 (Polyutene-1), Alcohol (EVOH), Polyblend (PI), BDR (Butadiene resin), Polyarylate (PAR), Hydroxybutyl (HBP), Fluoro Resins (FR), Ionomer resin, Polythene naphthalate (PEN) test items:Total lead, total cadmium, total mercury, hexavalent chromium, heavy metal dissolution (calculated by lead), potassium permanganate consumption, evaporation residue in distilled water, 4% in acetic acid, 20% in ethanol, evaporation residue in n-hexane, evaporation residue4. PS, Polyphenene ether (PPE) polystyrene, polystyrene resin testing items:Total lead, total cadmium, total mercury, hexavalent chromium, heavy metal dissolution (calculated by lead), consumption of potassium permanganate, evaporation residue in distilled water, 4% evaporation residue in acetic acid, 20% evaporation residue in ethanol, n-hexane evaporation residue, volatile matter5. PVDC testing project:Polyvinylidene chloride, total lead, total cadmium, total mercury, hexavalent chromium, heavy metal leaching, consumption of potassium permanganate, evaporation residue in distilled water, 4% evaporation residue in acetic acid, 20% evaporation residue in ethanol, n-hexane, evaporation residue, barium, vinylidene chloride6. PET testing items:Total lead, total cadmium, total mercury, hexavalent chromium, heavy metal dissolution (calculated by lead), consumption of potassium permanganate, evaporation residue in distilled water, 4% evaporation residue in acetic acid, 20% evaporation residue in ethanol, evaporation residue in n-hexane, 4% evaporation residue in acetic acid, antimony dissolution, 4% dissolution in acetic acid, germanium dissolution in acetic acid, terephthalic acid, isophthalic acid7. PF (Phenol Formaldehyde) Phenol Formaldehyde Resin Test Items:Total lead, total cadmium, total mercury, hexavalent chromium, and heavy metal leaching (calculated as lead). Evaporation residue in distilled water, 4% in acetic acid, 20% in ethanol, evaporation residue in n-hexane, 4% in acetic acid, phenol extraction, 4% in acetic acid, formaldehyde extraction8. MF (melamine formaldehyde) melamine resin testing project:Total lead, total cadmium, total mercury, hexavalent chromium, heavy metal leaching (calculated as lead), evaporation residue in distilled water, 4% in acetic acid, evaporation residue in 20% in ethanol, evaporation residue in n-hexane, 4% in acetic acid, phenol extraction, 4% in acetic acid, formaldehyde extraction, 4% in acetic acid, melamine extraction9. UF (urea formaldehyde), POM urea formaldehyde resin, polyformaldehyde test items:Total lead, total cadmium, total mercury, hexavalent chromium, and heavy metal leaching (calculated as lead). Evaporation residue in distilled water, 4% in acetic acid, 20% in ethanol, evaporation residue in n-hexane, 4% in acetic acid, phenol extraction, 4% in acetic acid, formaldehyde extraction10. Acrylic resin testing items:Total lead, total cadmium, total mercury, hexavalent chromium, heavy metal dissolution (calculated by lead), consumption of potassium permanganate, evaporation residue in distilled water, 4% evaporation residue in acetic acid, 20% evaporation residue in ethanol, n-hexane evaporation residue, methyl methacrylate11. PA polyamide (nylon) testing items:Total lead, total cadmium, total mercury, hexavalent chromium, heavy metal leaching (calculated as lead), consumption of potassium permanganate, evaporation residue in distilled water, 4% evaporation residue in acetic acid, 20% evaporation residue in ethanol, evaporation residue in n-hexane, 4% evaporation residue in acetic acid, phenylmethane extraction, ethylene glycol extraction, hexamethylene diamine caprolactam12. PC polycarbonate testing project:Total lead, total cadmium, total mercury, hexavalent chromium, heavy metal leaching (calculated by lead), consumption of potassium permanganate, evaporation residue in distilled waterEvaporation residue in 4% acetic acid, evaporation residue in 20% ethanol, evaporation residue in n-hexane, BPA bisphenol A bisphenol A extraction, diphenylcarbonate amines (Triethylamine and tributylamine)13. PU testing items:Total lead, total cadmium, total mercury, hexavalent chromium, heavy metal leaching (calculated as lead), potassium permanganate consumption, evaporation residue in distilled water, 4% evaporation residue in acetic acid, 20% evaporation residue in ethanol, n-hexane evaporation residue, isocyanate, methylene diphenylamine leaching14. ABS, AS polystyrene polyester, polyester, acrylic plastic products require testing items:Total lead, total cadmium, total mercury, hexavalent chromium, heavy metal leaching (calculated as lead), consumption of potassium permanganate, evaporation residue in distilled water, 4% evaporation residue in acetic acid, 20% evaporation residue in ethanol, evaporation residue in n-hexane, volatile matter in evaporation residue, acrylonitrile extraction in water, 1,3-butadiene extraction in water, acrylonitrile extraction in water15. Polymethacrylstyrene (MS) testing project:Total lead, total cadmium, total mercury, hexavalent chromium, heavy metal dissolution (calculated by lead), consumption of potassium permanganate, evaporation residue in distilled water, 4% evaporation residue in acetic acid, 20% evaporation residue in ethanol, n-hexane evaporation residue, volatile matter, Methylmethylmethacrylate (Elution-20% ethanol)16. PAN testing items:Total lead, total cadmium, total mercury, hexavalent chromium, heavy metal leaching (calculated by lead), consumption of potassium permanganate, evaporation residue in distilled water, 4% evaporation residue in acetic acid, 20% evaporation residue in ethanol, n-hexane evaporation residue, acrylonitrile extraction in water17. MABS testing items:Total lead, total cadmium, total mercury, hexavalent chromium, heavy metal leaching (calculated as lead), consumption of potassium permanganate, evaporation residue in distilled water, 4% evaporation residue in acetic acid, 20% evaporation residue in ethanol, evaporation residue in n-hexane, volatile matter in evaporation residue in water, extraction of methyl methacrylate (Elution-20% ethanol), 1,3-butadiene, extraction of 4,4 '- methylenedianiline (Elution-4% acetic acid)18. Epoxy resin testing items:Total lead, total cadmium, total mercury, hexavalent chromium, heavy metal leaching (calculated as lead), consumption of potassium permanganate, evaporation residue in distilled water, 4% evaporation residue in acetic acid, 20% evaporation residue in ethanol, evaporation residue in n-hexane, BPA (Elution included phenol, BPA, pt butylphenol), extraction of BPA with bisphenol A epoxy resin, F diglycidyl ether (Elution), Epichlorohydrin (Elution n heptane) Amines19. PCT testing items:Total lead, total cadmium, total mercury, hexavalent chromium, heavy metal leaching (calculated by lead), consumption of potassium permanganate, evaporation residue in distilled water, 4% evaporation residue in acetic acid, 20% evaporation residue in ethanol, n-hexane, Terephthalic acid (elution), Isophthalic acid (Elution), 4% evaporation residue in acetic acid, antimony leaching20. PE polyethylene testing items:Total lead, total cadmium, total mercury, hexavalent chromium, heavy metal leaching (calculated as lead), consumption of potassium permanganate, evaporation residue in distilled water, 4% evaporation residue in acetic acid, 20% evaporation residue in ethanol, evaporation residue in n-hexane, extraction residue in 1-octene (elution) 1-ene21. Polyarylsulfone (PASF) testing project:Total lead, total cadmium, total mercury, hexavalent chromium, heavy metal dissolution (calculated by lead), consumption of potassium permanganate, evaporation residue in distilled water, 4% evaporation residue in acetic acid, 20% evaporation residue in ethanol, evaporation residue in n-hexane, Bisphenol A (Elution inclusion phenol, BPA, pt butylphenol), 4,4 '- dichlorodiphenyl sulfate (Elution)22. PES testing items:Total lead, total cadmium, total mercury, hexavalent chromium, heavy metal dissolution (calculated by lead), consumption of potassium permanganate, evaporation residue in distilled water, 4% evaporation residue in acetic acid, 20% evaporation residue in ethanol, evaporation residue in n-hexane, 4,4 '- dichlorodophenylsulfone (Elution)23. POM testing items:Total lead (excluding silica gel), total cadmium (excluding silica gel), total mercury (excluding silica gel), hexavalent chromium (excluding silica gel), heavy metal leaching (calculated as lead), residue from evaporation in distilled water, 4% residue from evaporation in acetic acid, 20% residue from evaporation in ethanol, residue from evaporation in n-hexane, Formaldehide (Elution-4% acetic acid)24. PBT testing items:Total lead (excluding silica gel), total cadmium (excluding silica gel), total mercury (excluding silica gel), hexavalent chromium (excluding silica gel), heavy metal leaching (calculated as lead), consumption of potassium permanganate, evaporation residue in distilled water, 4% evaporation residue in acetic acid, 20% evaporation residue in ethanol, n-hexane evaporation residue (except for Polyactive acid), Terephthalic acid (evolution), Isophthalic acid (Elution)25. PAR test items:Total lead (excluding silica gel), total cadmium (excluding silica gel), total mercury (excluding silica gel), hexavalent chromium (excluding silica gel), heavy metal leaching (calculated as lead), potassium permanganate consumption, evaporation residue in distilled water, 4% acetic acid, evaporation residue in ethanol, 20% ethanol, evaporation residue in n-hexane, Terehthalic acid (evolution) Isophthalic acid (Elution) Bisphenol A (Elution included phenol, BPA, pt butylphenol)26. PLA/PBSA testing items:Total lead (excluding silica gel), total cadmium (excluding silica gel), total mercury (excluding silica gel), hexavalent chromium (excluding silica gel), heavy metal leaching (calculated as lead), consumption of potassium permanganate, evaporation residue in distilled water, 4% in acetic acid, evaporation residue in 20% in ethanol, evaporation residue in n-hexane, evaporation residueIf the sample does not contain starch, make a general standard itemIf the sample contains starch, do the following (excluding evaporation residue)Arsenic dissolves into 4% acetic acid, formaldehyde dissolves into fluorescent substances27. PMP (polymethylpene) testing project:4-Methyl-1-pentene28. PPS (poly (phenylenesufide) testing project:1,4-Dichlorobenzene29. Crosses linked polyether resin testing project:Terephthalic acid isophthalic acid30. Cellophane (regenerated cellulose film) glass paper (regenerated cellulose) testing project:Total lead, total cadmium, total mercury, total hexavalent chromium, arsenic, heavy metal leaching (calculated as lead), evaporation residue in 4% acetic acid31. Rubber, Silicone resin, BDR (Butadiene resins), TPE rubber, silicone resin, butadiene resin 2-mercaptoimidazole test items:Total lead, total cadmium, 4% heavy metal dissolution in acetic acid (calculated as lead), 1,3 butadiene (only for butadiene rubber), evaporation residue (water, oily food with 20% ethanol as simulation solution), evaporation residue in water - rubber nipple, 4% phenol dissolution in acetic acid, 4% formaldehyde dissolution in acetic acid, 4% zinc dissolution in acetic acid, and zinc dissolution in water - rubber milk

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The testing requirements for KFDA Korean food grade materials are:

1. General requirements for Synthetic Resin (general standard) Total lead (excluding silicone) test items:

Total cadmium (excluding silica gel), total mercury (excluding silica gel), hexavalent chromium (excluding silica gel), heavy metal dissolution (calculated as lead), potassium permanganate consumption (excluding PF, UF, MF, POM), evaporation residue in distilled water, 4% in acetic acid, evaporation residue in 20% in ethanol, evaporation residue in n-hexane, evaporation residue (except for Polyactive acid)

2. Test items for total lead in PVC and polyvinyl chloride:

Total cadmium, total mercury, hexavalent chromium, heavy metal leaching (calculated as lead), potassium permanganate consumption, evaporation residue in distilled water, 4% acetic acid, evaporation residue in ethanol, 20% ethanol, evaporation residue in n-hexane, dibutyltin (VCM), vinyl chloride monomer, o-benzene migration (water, 4% acetic acid, 20% ethanol, and n-heptane), determination of trimethyl phosphate in PVC materials

3. PP, PBT, EVA, PPS, PLA/PBSA, PMP (polymethylene), PVA (Polyvinyl Alcohol), PB-1 (Polyutene-1), Alcohol (EVOH), Polyblend (PI), BDR (Butadiene resin), Polyarylate (PAR), Hydroxybutyl (HBP), Fluoro Resins (FR), Ionomer resin, Polythene naphthalate (PEN) test items:

Total lead, total cadmium, total mercury, hexavalent chromium, heavy metal dissolution (calculated by lead), potassium permanganate consumption, evaporation residue in distilled water, 4% in acetic acid, 20% in ethanol, evaporation residue in n-hexane, evaporation residue

4. PS, Polyphenene ether (PPE) polystyrene, polystyrene resin testing items:

5. PVDC testing project:

Polyvinylidene chloride, total lead, total cadmium, total mercury, hexavalent chromium, heavy metal leaching, consumption of potassium permanganate, evaporation residue in distilled water, 4% evaporation residue in acetic acid, 20% evaporation residue in ethanol, n-hexane, evaporation residue, barium, vinylidene chloride

6. PET testing items:

Total lead, total cadmium, total mercury, hexavalent chromium, heavy metal dissolution (calculated by lead), consumption of potassium permanganate, evaporation residue in distilled water, 4% evaporation residue in acetic acid, 20% evaporation residue in ethanol, evaporation residue in n-hexane, 4% evaporation residue in acetic acid, antimony dissolution, 4% dissolution in acetic acid, germanium dissolution in acetic acid, terephthalic acid, isophthalic acid

7. PF (Phenol Formaldehyde) Phenol Formaldehyde Resin Test Items:

Total lead, total cadmium, total mercury, hexavalent chromium, and heavy metal leaching (calculated as lead). Evaporation residue in distilled water, 4% in acetic acid, 20% in ethanol, evaporation residue in n-hexane, 4% in acetic acid, phenol extraction, 4% in acetic acid, formaldehyde extraction

8. MF (melamine formaldehyde) melamine resin testing project:

Total lead, total cadmium, total mercury, hexavalent chromium, heavy metal leaching (calculated as lead), evaporation residue in distilled water, 4% in acetic acid, evaporation residue in 20% in ethanol, evaporation residue in n-hexane, 4% in acetic acid, phenol extraction, 4% in acetic acid, formaldehyde extraction, 4% in acetic acid, melamine extraction

9. UF (urea formaldehyde), POM urea formaldehyde resin, polyformaldehyde test items:

10. Acrylic resin testing items:

11. PA polyamide (nylon) testing items:

Total lead, total cadmium, total mercury, hexavalent chromium, heavy metal leaching (calculated as lead), consumption of potassium permanganate, evaporation residue in distilled water, 4% evaporation residue in acetic acid, 20% evaporation residue in ethanol, evaporation residue in n-hexane, 4% evaporation residue in acetic acid, phenylmethane extraction, ethylene glycol extraction, hexamethylene diamine caprolactam

12. PC polycarbonate testing project:

Total lead, total cadmium, total mercury, hexavalent chromium, heavy metal leaching (calculated by lead), consumption of potassium permanganate, evaporation residue in distilled water

Evaporation residue in 4% acetic acid, evaporation residue in 20% ethanol, evaporation residue in n-hexane, BPA bisphenol A bisphenol A extraction, diphenylcarbonate amines (Triethylamine and tributylamine)

13. PU testing items:

Total lead, total cadmium, total mercury, hexavalent chromium, heavy metal leaching (calculated as lead), potassium permanganate consumption, evaporation residue in distilled water, 4% evaporation residue in acetic acid, 20% evaporation residue in ethanol, n-hexane evaporation residue, isocyanate, methylene diphenylamine leaching

14. ABS, AS polystyrene polyester, polyester, acrylic plastic products require testing items:

Total lead, total cadmium, total mercury, hexavalent chromium, heavy metal leaching (calculated as lead), consumption of potassium permanganate, evaporation residue in distilled water, 4% evaporation residue in acetic acid, 20% evaporation residue in ethanol, evaporation residue in n-hexane, volatile matter in evaporation residue, acrylonitrile extraction in water, 1,3-butadiene extraction in water, acrylonitrile extraction in water

15. Polymethacrylstyrene (MS) testing project:

Total lead, total cadmium, total mercury, hexavalent chromium, heavy metal dissolution (calculated by lead), consumption of potassium permanganate, evaporation residue in distilled water, 4% evaporation residue in acetic acid, 20% evaporation residue in ethanol, n-hexane evaporation residue, volatile matter, Methylmethylmethacrylate (Elution-20% ethanol)

16. PAN testing items:

Total lead, total cadmium, total mercury, hexavalent chromium, heavy metal leaching (calculated by lead), consumption of potassium permanganate, evaporation residue in distilled water, 4% evaporation residue in acetic acid, 20% evaporation residue in ethanol, n-hexane evaporation residue, acrylonitrile extraction in water

17. MABS testing items:

Total lead, total cadmium, total mercury, hexavalent chromium, heavy metal leaching (calculated as lead), consumption of potassium permanganate, evaporation residue in distilled water, 4% evaporation residue in acetic acid, 20% evaporation residue in ethanol, evaporation residue in n-hexane, volatile matter in evaporation residue in water, extraction of methyl methacrylate (Elution-20% ethanol), 1,3-butadiene, extraction of 4,4 '- methylenedianiline (Elution-4% acetic acid)

18. Epoxy resin testing items:

Total lead, total cadmium, total mercury, hexavalent chromium, heavy metal leaching (calculated as lead), consumption of potassium permanganate, evaporation residue in distilled water, 4% evaporation residue in acetic acid, 20% evaporation residue in ethanol, evaporation residue in n-hexane, BPA (Elution included phenol, BPA, pt butylphenol), extraction of BPA with bisphenol A epoxy resin, F diglycidyl ether (Elution), Epichlorohydrin (Elution n heptane) Amines

19. PCT testing items:

Total lead, total cadmium, total mercury, hexavalent chromium, heavy metal leaching (calculated by lead), consumption of potassium permanganate, evaporation residue in distilled water, 4% evaporation residue in acetic acid, 20% evaporation residue in ethanol, n-hexane, Terephthalic acid (elution), Isophthalic acid (Elution), 4% evaporation residue in acetic acid, antimony leaching

20. PE polyethylene testing items:

21. Polyarylsulfone (PASF) testing project:

Total lead, total cadmium, total mercury, hexavalent chromium, heavy metal dissolution (calculated by lead), consumption of potassium permanganate, evaporation residue in distilled water, 4% evaporation residue in acetic acid, 20% evaporation residue in ethanol, evaporation residue in n-hexane, Bisphenol A (Elution inclusion phenol, BPA, pt butylphenol), 4,4 '- dichlorodiphenyl sulfate (Elution)

22. PES testing items:

23. POM testing items:

Total lead (excluding silica gel), total cadmium (excluding silica gel), total mercury (excluding silica gel), hexavalent chromium (excluding silica gel), heavy metal leaching (calculated as lead), residue from evaporation in distilled water, 4% residue from evaporation in acetic acid, 20% residue from evaporation in ethanol, residue from evaporation in n-hexane, Formaldehide (Elution-4% acetic acid)

24. PBT testing items:

Total lead (excluding silica gel), total cadmium (excluding silica gel), total mercury (excluding silica gel), hexavalent chromium (excluding silica gel), heavy metal leaching (calculated as lead), consumption of potassium permanganate, evaporation residue in distilled water, 4% evaporation residue in acetic acid, 20% evaporation residue in ethanol, n-hexane evaporation residue (except for Polyactive acid), Terephthalic acid (evolution), Isophthalic acid (Elution)

25. PAR test items:

Total lead (excluding silica gel), total cadmium (excluding silica gel), total mercury (excluding silica gel), hexavalent chromium (excluding silica gel), heavy metal leaching (calculated as lead), potassium permanganate consumption, evaporation residue in distilled water, 4% acetic acid, evaporation residue in ethanol, 20% ethanol, evaporation residue in n-hexane, Terehthalic acid (evolution) Isophthalic acid (Elution) Bisphenol A (Elution included phenol, BPA, pt butylphenol)

26. PLA/PBSA testing items:

Total lead (excluding silica gel), total cadmium (excluding silica gel), total mercury (excluding silica gel), hexavalent chromium (excluding silica gel), heavy metal leaching (calculated as lead), consumption of potassium permanganate, evaporation residue in distilled water, 4% in acetic acid, evaporation residue in 20% in ethanol, evaporation residue in n-hexane, evaporation residue

If the sample does not contain starch, make a general standard item

If the sample contains starch, do the following (excluding evaporation residue)

Arsenic dissolves into 4% acetic acid, formaldehyde dissolves into fluorescent substances

27. PMP (polymethylpene) testing project:

4-Methyl-1-pentene

28. PPS (poly (phenylenesufide) testing project:

1,4-Dichlorobenzene

29. Crosses linked polyether resin testing project:

Terephthalic acid isophthalic acid

30. Cellophane (regenerated cellulose film) glass paper (regenerated cellulose) testing project:

Total lead, total cadmium, total mercury, total hexavalent chromium, arsenic, heavy metal leaching (calculated as lead), evaporation residue in 4% acetic acid

31. Rubber, Silicone resin, BDR (Butadiene resins), TPE rubber, silicone resin, butadiene resin 2-mercaptoimidazole test items:

Total lead, total cadmium, 4% heavy metal dissolution in acetic acid (calculated as lead), 1,3 butadiene (only for butadiene rubber), evaporation residue (water, oily food with 20% ethanol as simulation solution), evaporation residue in water - rubber nipple, 4% phenol dissolution in acetic acid, 4% formaldehyde dissolution in acetic acid, 4% zinc dissolution in acetic acid, and zinc dissolution in water - rubber milk

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