Division 2.11.2.1 A substance or mixture shall be classified as a self-heating substance or mixture of this class, if in the tests performed in accordance with the test method given in the UN RTDG, Manual of Tests and Criteria, Part III, sub-section 33.3.1.6:F1

a positive result is obtained using a 25 mm cube sample at 140 ^oC;

a positive result is obtained in a test using a 100 mm sample cube at 140 ^oC and a negative result is obtained in a test using a 100 mm cube sample at 120 ^oC and the substance or mixture is to be packed in packages with a volume of more than 3 m³;

a positive result is obtained in a test using a 100 mm sample cube at 140 ^oC and a negative result is obtained in a test using a 100 mm cube sample at 100 ^oC and the substance or mixture is to be packed in packages with a volume of more than 450 litres;

a positive result is obtained in a test using a 100 mm sample cube at 140 ^oC and a positive result is obtained in a test using a 100 mm cube sample at 100 ^oC.