Plastics overall migration testing

Materials and articles in contact with foodsmffs - Plastics - Part 12 Test methods for overall migration at low temperatures Materials and articles in contact with foodstuffs - Plastics - Part 13 Test methods for overah migration at high temperatures Materials and articles in contact with foodstuffs - Plastics - Part 14 Test methods for substitute tests for overall migration from plastics intended to come into contact with fatty foodstuffs using test media iso-octane and 95% ethanol... 

Part 14 Test methods for substitute tests for overall migration from plastics intended to come into contact with fatty foodstuffs using test media iso-octane and 95% ethanol. 

In a study recently carried out in Hong Kong on disposable plastic containers for take-away meals the migration of styrene oligomers, heavy metals and the overall migration from plastic containers and, where present, their lids were determined into food simulants under different test conditions. Results showed that all the disposable plastic container samples met the safety standards for heavy metals and residual styrene monomers. Hence, with the proper use of disposable plastic containers, they would be unlikely to cause a food... 

Materials and articles in contact with foodsmffs - Plastics - Part 1 Guide to the selection of conditions and test methods for overall migration... 

To support the analyst in applying such controls, CEN (the European Standardisation Commission) has in TC 194 adopted and validated analytical methods for the determination of the overall migration and the migration of some specific substances. These methods are intended to be applied for testing plashc materials and articles. At national level, e.g., in The Netherlands, the methods and simulants may also be used to demonstrate compliance with national regulation of non-plastic or multilayer materials composed of plastics and non-plastics (e.g. plastic on paper, coating on metal). 

To measure overall migration with olive oil or alternative simulants, the method used with the aqueous-based food simulants is obviously not applicable. With oil-type simulants the test is carried out by measuring the loss in mass of the test specimen after exposure to the food simulant. However, most plastics absorb some of the oil that then has to be extracted and quantitatively measured before the true loss in mass can be calculated. The extraction solvent that has been most commonly used in the past is... 

EN 1186-13, Materials and Articles in Contactwith Foodstuffs - Plastics -Test Methods for Overall Migration at High Temperatures, 2002. 

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