The first is for the simulant required for the test project. Simulants are food substitutes which reflect the properties of the food stuffs which will come into contact with the product or component.
There are six different simulant types specified for use in overall migration testing:
- simulant A – 10 per cent ethanol (v/v)
- simulant B – 3 per cent acetic acid (w/v)
- simulant C – 20 per cent ethanol (v/v)
- simulant D1 – 50 per cent ethanol
- simulant D2 – Vegetable oil
- simulant E – Poly (2, 6-diphenyl-p-phenylene oxide), particle size 60-80 mesh, pore size 200nm.
Simulants A, B and C are assigned for foods that have hydrophilic properties, covering aqueous, acidic and alcoholic foods. Simulants D1 and D2 are for foods that have lipophilic properties, and covers both dairy and non-dairy fatty foods. Simulant E is assigned for testing specific migration into dry foods.
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Once the appropriate simulant has been selected, the testing conditions (temperature and exposure period) needs to be decided upon; there are seven overall migration limit testing conditions specified. You can view our OML testing conditions infographic for more information on these.
The Food Contact testing team at Smithers Pira provides migration testing to meet the necessary regulatory requirements.
For more information on how our experts can help your project, please contact us.
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