SCHEDULEAuthorised fuels

21

Dragonbrite briquettes, manufactured by Tower Colliery Limited at Aberdare, Mid Glamorgan, South Wales, which—

a

comprise tower duff (as to approximately 95% of the total weight) and a resin based binder (as to the remaining weight);

b

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

c

are pillow-shaped briquettes marked with the letter “T” on one side;

d

have an average weight of 50 grams per briquette; and

e

have a sulphur content not exceeding 1% of the total weight.