SCHEDULEAuthorised Fuels

41

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

a

comprise anthracite (as to approximately 36 to 51% of the total weight), petroleum coke (as to approximately 40 to 55% of the total weight) and an 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 ovoids;

d

have an average weight of 140 grams per briquette; and

e

have a sulphur content not exceeding 2% of the total weight.