57. Homefire Ovals (R) manufactured by Coal Products Limited at Immingham Briquetting Works, Immingham, North East Lincolnshire which–
(a)comprise anthracite fines (as to approximately 50 to 75% of the total weight), petroleum coke (as to approximately 20 to 45% of the total weight), bituminous coal (as to approximately 5 to 17% of the total weight) and an organic binder or, molasses and acid binder (as to the remaining weight);
(b)were manufactured from those constituents by a process involving roll-pressing and heat treatment up to about 300°C;
(c)are pillow-shaped briquettes with two parallel indented lines running latitudinally around the briquette;
(d)have an average weight of 130 grams per briquette; and
(e)have a sulphur content not exceeding 2% of the total weight.