background image
- Practical Guide -
Page 116 of 153
ANNEX II TO SECTION 5 OF CHAPTER I
METHOD OF ANALYSYS FOR CONTROL OF MIGRATION OF
COLORANTS ONTO FOODSTUFF
Warning:
This method was proposed by CIPCEL on 21 April 1992 as a proposal for a validated
method of analysis. It should not be considered as a Commission document.
INTRODUCTION
This test is to check the suitability of regenerated cellulose films containing colouring matter
(dyes and pigments) against the requirements of Article 2.2. of the EEC Regenerated
Cellulose Film Directive (Document 83/22WEEC - "Materials and articles made of
regenerated cellulose film intended to come into contact with foodstuffs").
APPARATUS
-
Filter paper for qualitative analysis, of medium porosity, such as Weissband Mittel
(Schleicher
& Schull) ; Whatman N 1 ; paper for chromatography (Archer 302),
-
Glass dessicator,
-
Oven capable of being regulated at 50 2C,
-
Glass plates e.g. photographic type
LIQUID SIMULANTS FOR STANDARD TESTS
-
Distilled water,
-
Aqueous solution of acetic acid 3% (w/w),
-
Aqueous solution of ethanol 15% (v/v),
-
Decolorised edible oil or fat, or a comparable synthetic triglyceride,
If the foodstuff directly concerned does not correspond to the above simulants, e.g. owing to a
higher percentage of acetic acid or ethanol, then the test simulant should be adapted to the
particular requirements, or replaced by one which more closely corresponds to the foodstuff.
AREA OF CONTACT
At least 10 cm2.