1. Registry of Toxic Effects of Chemical Substances (RTECS)—Comprehensive Guide to the RTECS, DHHS (NIOSH) Publication No. 97-119, 1997.
2. 29CFR1910.1200, Hazard Communication, Appendix A.
3. 29CFR1910.1450, Occupational Exposures to Hazardous Chemicals in the Laboratory.
4. Klaassen, C.D. Casarett & Doull's Toxicology, 1996 5th edition McGraw-Hill 547 581