The following HTML text is provided to enhance online
readability. Many aspects of typography translate only awkwardly to HTML.
Please use the page image
as the authoritative form to ensure accuracy.
Emergency and Continuous Exposure Limits for Selected Airborne Contaminants, Volume 1
Previous EEL and CEL recommendations made by the Committee (1961 and 1966) for arsine exposure are as follows:
There is little additional information available for revising the 1966 recommendations and additional animal toxicity studies are necessary for the determination of an appropriate CEL. The Committee, thus, recommends that the 1-h and 24-h EELs be 1.0 and 0.1 ppm, respectively; these concentrations agree with the estimates provided by Gates et al. (1946) and Henderson and Haggard (1943). The Committee does not recommend a 90-d CEL because data are insufficient.