Paragraph 25 I1

comprise anthracite (as to approximately 35 to 50% of the total weight), petroleum coke (up to approximately 45% of the total weight), bituminous coal (up to approximately 20% of the total weight) and a starch or other organic binder (up to 5% of the total weight);

are manufactured from those constituents by a process involving roll-pressing and heat treatment at approximately 250°C;

are unmarked pillow-shaped briquettes that are approximately 80 millimetres in length, 60 millimetres in width and 40 millimetres in height;

have an average weight of 110 grams; and

have a sulphur content not exceeding 1.8% of the total weight on a dry basis.