# The Smoke Control Areas (Authorised Fuels) (Wales) Regulations 2019, Paragraph 40

Extent: E+W

Extracite briquettes, manufactured by Sophia-Jacoba Handelsgesellschaft GmbH at Hückelhoven, Germany, which—
(a) comprise anthracite duff (as to approximately 95.5% of the total weight) and ammonium lignosulphonate lye as binder (as to the remaining weight);
(b) were manufactured from those constituents by a process involving roll-pressing and heat treatment at about 260°C;
(c) are cushion-shaped briquettes with a silvery appearance and are marked with the letters “S” and “J”;
(d) have an average weight of 40 grams; and
(e) have a sulphur content of approximately 1.2% of the total weight.

---
Source: https://www.legislation.gov.uk/wsi/2019/50/schedule/paragraph/40 (the official version)
Page: https://openlegislation.uk/smoke-control-areas-authorised-fuels-wales-regulations-2019/schedule/paragraph-40
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.