Barrier of internal bags against migration from recycled board

Producers of packaging need a specification to find the most suitable and economical barrier for a given application. An accurate determination of the barrier efficiency is not possible due to the large number of migrants. Hence the specification must be based on assumptions and verifiable by a simple test.
The proposed bench mark presumes that the migration of all non-evaluated or even unknown substances in recycled paperboard will remain below 0.01 mg/kg food, the conventional detection limit, if their transfer does not exceed 1% of the content in the paperboard. The corner stones of the method are specified (Food Additives & Contaminants: Part A, 3 March 2016).
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