Test classification
1. Materials in contact with liquid food
Plastics, coatings, paper, metal surfaces: conduct a comprehensive migration test
Some plastic types: special test
Lid and closure: Perform a full migration test
Metallic materials used for cooking: Perform composition analysis
Individual materials (such as paint and paint): total lead content test
2. Materials that are not in direct contact with food
Unless special requirements, generally do not need to test
3. Materials in contact with dry food
Metallic materials used for cooking: component analysis
Individual materials (such as paint and paint): total lead content test
