This substance may be carried under the provisions of Class 3 or Class 4.1 only if it is so packed that the percentage of diluent will not fall below that stated, at any time during carriage (see 2.2.3.1.1 and 2.2.41.1.18). In cases where the diluent is not stated, the substance shall be packed so that the amount of explosive substance does not exceed the stated value.

Additional requirements concerning the carriage of flammable liquids or gases (1) Portable lighting apparatus The load compartment of closed vehicles carrying liquids having a flash-point of not more than 60 °C or flammable substances or article of Class 2, shall not be entered by persons carrying portable lighting apparatus other than those so designed and constructed that they cannot ignite any flammable vapours or gases which may have penetrated into the interior of the vehicle. (2) Operation of combustion heaters during loading or unloading The operation of combustion heaters of vehicles of type FL (see Part 9) is forbidden during loading and unloading and at loading sites. (3) Precautions against electrostatic charges In the case of vehicles of type FL (see Part 9), a good electrical connection from the vehicle chassis to earth shall be established before tanks are filled or emptied. In addition, the rate of filling shall be limited.

The provisions of Chapter 8.4 concerning the supervision of vehicles shall apply for vehicles carrying any amount of these substances.