EN 1186-10:2002

Foreword
1 Scope
2 Normative references
3 Principle
4 Reagents
5 Apparatus
6 Preparation of test specimens
7 Procedure
   7.1 General
   7.2 Initial weighing of test specimens
   7.3 Exposure to food simulant
   7.4 Final weighing of test specimens
   7.5 Extraction of absorbed olive oil
   7.6 Determination of extracted olive oil
        7.6.1 Preparation of fatty acid methyl esters
        7.6.2 Determination of fatty acid methyl esters
8 Expression of results
   8.1 Method of calculation
   8.2 Precision
9 Test report
Annex A (normative) Determination of the suitability of olive
        oil as the fatty food simulant and of triheptadecanoin
        as the internal standard
   A.1 Principle
   A.2 Procedure
   A.3 Conclusions
Annex B (informative) Precision
Annex ZA (informative) Relationship of this European Standard
         with Council Directive 89/109/EEC and Commission
         Directive 90/128/EEC and associated Directives
Bibliography

This European Standard describes test methods for the determination of the overall migration into fatty food simulants from plastics materials and articles, by total immersion of test specimens in a fatty food simulant at any temperatures above 5 °C up to and including, 175 °C for selected times.When some plastics are tested by the methods in prEN 1186-2, prEN 1186-4, prEN 1186-6, prEN 1186-8, prEN 1186-12 and prEN 1186-13, the soxhlet extraction process does not achieve complete recovery of the absorbed olive oil from the test specimens. In this method, the olive oil is released from the plastics test specimens by dissolving them in chloroform, toluene, xylene or tetrahydrofuran. This method is suitable for plastics when exposure to olive oil is by total immersion as described in prEN 1186-2, in a cell, as described in prEN 1186-4, in a pouch, as described in prEN 1186-6, and by filling, as described in prEN 1186-8 and to tests carried out at low and high temperature, as described in prEN 1186-12 and prEN 1186-13. This is provided the plastics are soluble in chloroform, toluene, xylene or tetrahydrofuran and insoluble in methanol and that whenever prEN 1186-2 is referred to in this method the appropriate clause of the relevant part of prEN 1186 is substituted. The method may also be suitable for plastics which are only partially soluble in chloroform, toluene, xylene or tetrahydrofuran and insoluble in methanol.NOTE 1This test method has been written for use with the fatty food simulant, olive oil. The test method can also be used with appropriate modifications with 'other fatty food simulants ' called simulant D - a synthetic mixture of triglycerides, sunflower oil and corn oil. These other fatty food simulants will produce different chromatograms for the simulant methyl esters to those of the methyl esters of olive oil.