23.  Duraflame Firelogs, manufactured by Paramelt B.V., Costerstraat 18, PO Box 86, 1700 AB Heerhugowaard, the Netherlands, which—

(a)comprise mineral-based petroleum wax (as to approximately 55 per cent of the total weight) and ground hardwood fibre (as to approximately 45 per cent of the total weight);

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

(c)are firelogs approximately 320 millimetres in length, 90 millimetres in height and 85 millimetres in width;

(d)have an average weight of 1.45 kilogrammes per firelog; and

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