About Food Contact Testing of Polycarbonate Materials
Polycarbonate materials are often used as storage containers and beverage containers. It is preferred due to its high clarity and impact resistance.The FDA requires that polycarbonate resins intended for use in food contact applications must meet certain requirements for extractable content. This method covers part C of 21 CFR 177.1580. Testing for specific compounds must be treated on a case by case basis (BPA testing for example).
1. Samples must be identified as polycarbonate by FTIR analysis.
2. Samples are ground and sieved prior to extraction.
3. Samples are extracted with distilled water. Extractives are not to exceed 0.15% by weight of the resin.
4. Samples are extracted with 50/50 solutions of ethyl alcohol and distilled water. Extractives are not to exceed 0.15% by weight of the resin.
5. Samples are extracted with n-heptane. Extractives are not to exceed 0.15% by weight of the resin.
15 grams of material are required to complete the testing.