1. Dow's Fire and Explosion Index Hazard Classification Code, 7th ed., and Dow's Chemical Exposure Index Guide, 4th ed.; American Institute and Chemical Engineers, 1994.
2. NIOSH Pocket Guide to Chemical Hazards (NPG), National Institute of Occupational Health and Safety, http://www.cdc.gov/niosh/npg, accessed 10/04/2011.
3. CAMEO Hazardous Materials Database, http://cameochemicals.noaa.gov, accessed 07/09/2011.