Health & Safety Executive
HSE Report Corus Blast Furnace 2001
http://www.hse.gov.uk/pubns/web34.pdf
HSE INDG 436
http://www.hse.gov.uk/pubns/indg436.htm
CEA BG01
http://www.cea.org.uk/files/8013/9351/1918/BG01.pdf
Birmingham Boiler Explosion 2017
http://www.bbc.co.uk/news/uk-england-birmingham-40901932