References
- 1966 . American Conference of Governmental Industrial Hygienists: . AMA Arch. of Ind. Health , 11 : 622
- 1948 . American Petroleum Institute: API Toxicological Review—Hydrogen Sulfide New York
- American Standards Association: American Standard Z37.2–1941
- Barthelemy , H. L. 1939 . J. Ind. Hyg. Tox. , 21 : 141
- Jacobs , M. B. 1949 . The Analytical Chemistry of Industrial Hazards, Poisons, and Solvents , 2nd Ed. , Vol. 1 , New York : Interscience Publishers, Inc. .