EUROLAB, with its state-of-the-art accredited laboratories and expert team, provides precise and fast testing services within the scope of EN 1186-7 testing. This standard describes a test method for determining overall migration by forming plastic film or sheet from only one surface of sheet and film plastics intended to come into contact with foodstuffs.
This method is most suitable for plastics in the form of films and sheets that can be sealed with heat or pressure.
This method is most suitable for film and sheet plastics, but is applicable to most materials or containers from which test pieces can be cut to suitable sizes.
The overall migration of non-volatile substances from a plastic sample is determined as the mass of the non-volatile residue after evaporation of the food simulant following immersion. The choice of test conditions and food simulants will be determined by the conditions of use.
Test samples of approximately 1 dm² are immersed in food simulant for exposure time at and up to reflux temperature. At the end of the test period, each test sample is removed from the food simulant. The food simulant from each test sample is evaporated to dryness, the mass of the non-volatile residue determined gravimetrically and expressed in milligrams per square decimeter of surface area of the test sample.
It is important that test specimens are clean and free of surface contamination (many plastics can easily attract dust due to static charges). Before preparing test specimens, remove all surface contamination from the specimen by lightly wiping the specimen with a lint-free cloth or brushing it with a soft brush. Under no circumstances should you wash the sample with water or solvent. If it is stated in the instructions for use of the product that it should be washed or cleaned before use, EN 1186-1 should be consulted. Minimize the handling of samples and wear cotton gloves when necessary.
EUROLAB assists manufacturers with EN 1186-7 test compliance. Our test experts, with their professional working mission and principles, provide you, our manufacturers and suppliers, the best service and controlled testing process in our laboratories. Thanks to these services, businesses receive more effective, high-performance and quality testing services and provide safe, fast and uninterrupted service to their customers.
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