Reference
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- Wilson , E. D. 1940 . Westinghouse Research Laboratory: personal communication
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- Barrett , H. M. 1936 . The determination of trichlorethylene in air . Ibid. , 18 : 341
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- Silverman , L. 1941 . Unpublished data
- 1939 . His Majesty's Stationery Office: Nitrous fumes , London : Methods for the detection of toxic gases in industry. . Leaflet No. 5