comprise slack wax (as to approximately 58 to 59 per cent of the total weight) and hardwood sawdust (as to approximately 41 to 42 per cent of the total weight);

were manufactured from those constituents by a process of heat treatment and extrusion;

are firelogs approximately 265 millimetres in length and 80 millimetres in depth, with grooves along their faces;

have an average weight of 1.3 kilogrammes per firelog; and

have a sulphur content not exceeding 0.1 per cent of the total weight.