Geology Reference
In-Depth Information
WWW Addresses: Additional Reading
(1) CAFSCO Nitrogen Foam and Compressed Air Foam
http://www.CAFSCO.com
(2) U.S. Patent 4457375
http://www.cafsco.com/US4457375_Cummins.pdf
(3) U.S. Patent 4318443
http://www.cafsco.com/US4318443_Cummins.pdf
(4) Chemguard Specialty Chemicals and Equipment
http://www.chemguard.com/about-us/news/2007/chemguard-gas-displacement-foam.htm
(5) Nitrogen Foam at the Pinnacle Mine Fire
http://www.cdc.gov/niosh/mining/pubs/pdfs/tuone.pdf
(6) The New York Sun: The Wrong Fire
http://www.nysun.com/opinion/wrong-fire/58374
(7) The Post-Gazette: Underground Coal Fires
http://www.post-gazette.com/healthscience/20030215coalenviro4p4.asp
