Testing Requirements
3.1 Raw material requirements
The use of silicone rubber raw materials in food contact rubber materials and products shall comply with Appendix A and relevant public regulations, and the use of vulcanized thermoplastic elastomer resins shall comply with the provisions of Appendix A of GB 4806.6 and relevant announcements.
3.2 Sensory requirements
|
Item |
Requirements |
|
Sens |
Normal color and luster, Odorless, No dirt, etc |
|
Soak solution |
No deterioration with turbidity, sedimentation and foreign odor in the soak solution obtained in the migration test |
3.3 Physical and Chemical Indicators
|
Item |
Requirements |
|
Overall Migration |
≤10mg/dm2 |
|
Potassium permanganate consumption |
≤10mg/kg |
|
Heavy metals (as lead) |
≤1mg/kg |
3.4 The specific migration limits, specific migration weight limits and maximum residues of monomers and their starting materials of silicone rubber shall comply with the provisions of Appendix A and relevant announcements. The specific migration limits, specific migration total limits and maximum residues of monomers and other starting materials of vulcanized thermoplastic elastomers shall comply with the provisions of Appendix A of GB4806.6 and relevant announcements.