# The Smoke Control Areas (Authorised Fuels) (England) Regulations 2008, Paragraph 21

Extent: E+W+S
Status: prospective

Fireglo briquettes, manufactured by Les Combustibles de Normandie at Caen, France, and by La Société Rouennaise de Defumage at Rouen, France, which—
(a) comprise washed Welsh duffs (as to approximately 92% 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 which have three lines on one side and are smooth on the other side;
(d) have an average weight of 30 grams per briquette; and
(e) have a sulphur content not exceeding 0.8% of the total weight.

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Source: https://www.legislation.gov.uk/uksi/2008/514/schedule/1/paragraph/21 (the official version)
Page: https://openlegislation.uk/smoke-control-areas-authorised-fuels-england-regulations-2008/schedule-1/paragraph-21
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.