Reference
- Wade , H. A. , Elkins , H. B. and Ruotolo , B. P. W. 1950 . Composition of Nitrous Fumes from Industrial Processes. . Arch. Ind. Hyg. and Occ. Med. , 1 Jan. : 81
- Beatty , R. L. , Berger , L. B. and Schrenk , H. H. Determination of the Oxides of Nitrogen by the Phe-noldisulfonic Acid Method. , 3687 Pittsburgh, Pennsylvania : R. I. Bureau of Mines .
- Patty , F. A. and Petty , G. M. 1913 . Nitrite Field Methods for the Determination of Oxides of Nitrogen. . J. Ind. Hyg. and Toxicol. , 25 Oct. : 361
- Saltzman , B. E. 1949 . Colorimetric Microdetermination of Nitrogen Dioxide in the Atmosphere. . Anal Chem. , 26 Dec. : 1954
- Jacobs , M. B. 1949 . The Analytical Chemistry of Industrial Poisons, Hazards and Solvents. , 2nd Ed. , 357 New York, New York : Inter-science Publishers, Inc. .
- Ephraim , F. 1948 . Inorganic Chemistry , 5th English Ed. , 682 London : Gurney-Jackson .
- Elkins , H. B. 1946 . Nitrogen Dioxide. . J. Ind. Hyg. and Toxicol. , 28 : 37
- Daniels , Hendrickson and Foster . 1951 . 18 Dec. Nitric Oxide Recovery, U. S. Patent 2,578,674
- Shnidman , L. and Yeaw , J. S. 1942 . American Gas Association Proceedings Vol. 24 , 277