| Chart of the periodic table of elements. Series of online tutorials on the subject of toxicology. California's Hazard Evaluation and Information Service's (HESIS) chemical hazards safety training booklets. Chemistry class practice problems, tables and links. |
| Managing workplace chemical hazards. NIOSH Pocket Guide to Chemical Hazards, NIOSH Recommendations for Chemical Protective Clothing. North American Emergency Response Guide. International Chemical Safety Cards. Isocyanates in the workplace, mercury, pentachlorophenol-treated materials, Chronic Beryllium Disease Prevention Program, ethylene oxide, picric acid. |
| Chart of the periodic table of elements. Series of online tutorials on the subject of toxicology. California's Hazard Evaluation and Information Service's (HESIS) chemical hazards safety training booklets. Chemistry class practice problems, tables and links. |