HSE documents:
Gas welding safety http://www.hse.gov.uk/pubns/indg297.pdf
Pneumonia vaccination in welders http://www.hse.gov.uk/pubns/eis44.htm
Take care with acetylene http://www.hse.gov.uk/pubns/indg327.pdf
Safe use of compressed gases in welding and allied processes https://www.hse.gov.uk/pubns/priced/hsg139.pdf
Welding Health and Safety index http://www.hse.gov.uk/welding/index.htm
American Welding Society Health and Safety fact sheets:
http://www.aws.org/w/a/technical/facts/
Safety in welding, cutting and allied processes http://www.aws.org/technical/AWS_Z49.pdf
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