OpenLegislation

Paragraph 5

Changes not yet applied. Later legislation changes this provision in ways not yet written into the text below:

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

(a)

comprise anthracite duff (as to approximately 20 to 30 per cent of the total weight), petroleum coke (as to approximately 40 to 45 per cent of the total weight), bituminous coal (as to approximately 12 to 22 per cent of the total weight) and molasses and phosphoric acid binder (as to the remaining weight);

(b)

were manufactured from those constituents by a process involving roll-pressing and heat treatment at about 300° C;

(c)

are pillow-shaped briquettes marked with two parallel indented lines running latitudinally around the briquette and have an average weight of 160 grammes; and

(d)

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