# The Smoke Control Areas (Authorised Fuels) (Wales) Regulations 2008, Paragraph 10


Charglow briquettes, manufactured by Polchar Spolka z organiczona odpowiedzialnoscia, Police, Zachodniopomorskie, Poland, which—
(a) comprise bituminous coal char (as to approximately 45 per cent to 95 per cent of the total weight), anthracite (as to approximately 0 per cent to 20 per cent of the total weight), petroleum coke (as to approximately 0 per cent to 20 per cent of the total weight), bituminous coal (as to approximately 0 per cent to 10 per cent of the total weight) and an organic binder (as to the remaining weight);
(b) were manufactured from those constituents by a process involving roll pressing and heat treatment at about 110° C;
(c) are unmarked pillow-shaped briquettes and have an average weight of 100 grammes; and
(d) have a sulphur content not exceeding 1.5 per cent of the total weight.

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Source: https://www.legislation.gov.uk/wsi/2008/3100/schedule/paragraph/10 (the official version)
Page: https://openlegislation.uk/smoke-control-areas-authorised-fuels-wales-regulations-2008/schedule/paragraph-10
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.