Dangerous Goods by Road
portable tanks shall not be offered for carriage:
(a) with a degree of filling, for liquids having a viscosity less than 2 680 mm2/s at 20 °c or
maximum temperature of the substance during carriage in the case of the heated substance, of
more than 20% but less than 80% unless the shells of portable tanks are divided, by partitions
or surge plates, into sections of not more than 7 500 litres capacity;
(b) with residue of substances previously carried adhering to the outside of the shell or service
equipment;
(c) when leaking or damaged to such an extent that the integrity of the portable tank or its lifting
or securing arrangements may be affected; and
(d) unless the service equipment has been examined and found to be in good working order.