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Paragraph 20

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

Fireglo briquettes, manufactured by Les Combustibles de Normandie at Caen, France, and by La Socitété Rouennaise de Défumage at Rouen, France, which—

(a)

comprise washed Welsh duffs (as to approximately 92 per cent of the total weight) and coal pitch binder (as to the remaining weight);

(b)

were manufactured from those constituents by a process involving roll-pressing and heat treatment at about 330° C;

(c)

are ovoids with three lines on one side and are smooth on the other side and have an average weight of 30 grammes; and

(d)

have a sulphur content not exceeding 0.8 per cent of the total weight.