Paragraph 58

England, Wales and Scotland

Supertherm briquettes, manufactured by Coal Products Limited at Immingham Briquetting Works, Immingham, North East Lincolnshire, which—

(a)

comprise a blend (in the proportion of 19:1 by weight) of anthracite and medium volatile coal (as to approximately 93% of the total weight) and cold-setting organic binder or a molasses and phosphoric acid binder (as to the remaining weight);

(b)

were manufactured from those constituents by a process involving roll-pressing;

(c)

are unmarked ovoid-shaped briquettes;

(d)

have an average weight of 160 grams per briquette; and

(e)

have a sulphur content not exceeding 1.5% of the total weight.