1. Subject to Parts III, IV, V, VI and VII of this Schedule, the simulants to be used in migration testing are specified in the Table to this paragraph (referred to in this Part of this Schedule as “the Table”).
| Abbreviation | Food Simulant |
|---|---|
| Simulant A: | Distilled water or water of equivalent quality |
| Simulant B: | 3% Acetic acid (w/v) in aqueous solution |
| Simulant C: | 10% Ethanol (v/v) in aqueous solution save that the concentration of ethanol solution shall be adjusted to the actual alcoholic strength of the food if it exceeds 10% (v/v) |
| Simulant D: | Rectified olive oil having the characteristics specified in paragraph 3 of this Part of this Schedule or, subject to paragraph 5 of this Part of this Schedule, any of the fatty food simulants specified in paragraph 4 of this Part of this Schedule |
2. For the purposes of this Schedule a reference to an abbreviation in column 1 of the Table shall mean a reference to the simulant in column 1 of that Table opposite that abbreviation.
3. The characteristics of rectified olive oil referred to in the Table are as hereinafter described—
Iodine value (Wijs) = 80 to 88
Refractive index at 25°C = 1.4665 to 1.4679
Acidity (expressed as % of oleic acid) = 0.5% maximum
Peroxide number (expressed as oxygen milliequivalents per kg of oil) = 10 maximum
4. The fatty food simulants referred to in the Table are—
(a)corn oil with standardised specifications;
(b)sunflower oil the characteristics of which are—
Iodine value (Wijs) = 120 to 145
Refractive index at 20°C = 1.474 to 1.476
Saponification number = 188 to 193
Relative density at 20°C = 0.918 to 0.925
Unsaponifiable matter = 0.5% to 1.5%; and
(c)a synthetic mixture of triglycerides the composition of which is as follows—
(i)fatty acid distribution
| No. of C-atoms in fatty acid residue | 6 | 8 | 10 | 12 | 14 | 16 | 18 | others |
| GLC area (%) | ∼1 | 6–9 | 8–11 | 45–52 | 12–15 | 8–10 | 8–12 | <=1 |
(ii)purity
| Content of monoglycerides (enzymatically) | <=0.2% |
| Content of diglycerides (enzymatically) | <=2.0% |
| Unsaponifiable matter | <=0.2% |
| Iodine value (Wijs) | <=0.1% |
| Acid value | <=0.1% |
| Water content (K. Fischer) | <=0.1% |
| Melting point | 28 ± 2°C |
(iii)typical absorption spectrum (thickness of layer: d = 1 cm; Reference: water at 35°C)
| Wavelength (nm) | 290 | 310 | 330 | 350 | 370 | 390 | 430 | 470 | 510 |
| Transmittance (%) | ∼2 | ∼15 | ∼37 | ∼64 | ∼80 | ∼88 | ∼95 | ∼97 | ∼98 |
At least 10% light transmittance at 310 nm
5. Where a fatty food simulant specified in paragraph 4 of this Part of this Schedule is used in migration testing and the result of that test shows that a plastic material or article does not comply with any migration limit specified in regulation 7 or Schedule 1 verification that the plastic material or article does not comply with the specified migration limit shall be carried out by testing that material or article using olive oil if such testing is technically feasible and if such testing is not technically feasible the plastic material or article shall be deemed not to comply with the specified migration limit.