About Food Contact Testing of Polyolefin Materials

Polyolefin materials are used in a wide variety of food contact materials from storage containers to flexible packaging. The FDA requires that polyolefin resins intended for use in food contact applications must meet certain requirements for density, melt point and extractable content.  This analytical method covers part C of 21 CFR 177.1520.  Testing for specific compounds must be treated on a case by case basis.

Approach

1.       Samples must be identified by Fourier Infrared Transform Spectroscopy (FTIR) analysis.

2.       Density and melting point must be verified by displacement and differential scanning calorimetry, respectively.

3.       Extractable content is measured in n-hexane and xylene. Limits are set based on the results of #2.

Sample Considerations

10 grams of material are required to complete the testing.