the following substances shall not be accepted for carriage:
- self-reactive substances of type a (see manual of tests and criteria, part ii, paragraph 20.4.2 (a));
- phosphorus sulphides which are not free from yellow and white phosphorus;
- solid densitized explosives other than those listed in table a of chapter 3.2;
- inorganic flammable substances in the molten form other than un no. 2448 sulphur,molten.