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Plastic Materials and Articles in Contact with Food Regulations (Northern Ireland) 1998

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C.Special Cases

5.  When carrying out a migration test of a plastic material or article which is intended for use in a microwave oven, if the appropriate time and temperature is selected from the Table to this Part, either a conventional oven or a microwave oven may be used.

6.  Where the carrying out of a migration test under contact conditions specified in the Table to this Part causes any physical or other change in the test specimen which does not occur under the worst foreseeable conditions of use of the plastic material or article being tested the migration test shall be carried out in the worst foreseeable conditions of use in which such physical or other change does not occur.

7.  Where, in actual use, the plastic material or article being tested is intended to be used for periods of less than 15 minutes at any temperature of not less than 70°C and not more than 100°C and such use is indicated by appropriate labelling or instructions no test other than for 2 hours at 70°C shall be carried out on the plastic material or article unless the plastic material or article is also intended to be used for storage at room temperature in which case no further test other than for 10 days test at 40°C shall be carried out.

8.  The Table to this Part shall be read with the notes to it.

Conditions of contact in worst foreseeable useTest conditions
Contact timeTest time

The period of time which represents the worst foreseeable conditions of contact.

t ≤ 5 minutes(1)
5 minutes < t ≤ 0·5 hours0·5 hours
0·5 hours < t ≤ 1 hour1 hour
1 hour < t ≤ 2 hours2 hours
2 hours < t ≤ 4 hours4 hours
4 hours < t ≤ 24 hours24 hours
t > 24 hours10 days
Contact temperatureTest temperature

This temperature shall be used only for simulant D. For simulant A, B or C the test may be replaced by a test at 100°C or at reflux temperature for a duration of four times the time selected in accordance with paragraph 1 of this Part.

T ≤ 5°C5°C
5°C < T ≤ 20°C20°C
20°C < T ≤ 40°C40°C
40°C < T ≤ 70°C70°C
70°C < T ≤ 100°C100°C or reflux temperature
100°C < T ≤ 121°C121°C(2)
121°C < T ≤ 130°C130°C(2)
130°C < T ≤ 150°C150°C(2)
T > 150°C175°C(2)

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