Paragraph 40

As made

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 per cent 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 ovoids;

(d)

have an average weight of 160 grammes per briquette; and

(e)

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