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Tests of full- and small-scale gaseous contaminant adsorbers with single and mixed VOCS
Owen, MK., VanOsdell, DW., & Jaffe, LB. (1998). Tests of full- and small-scale gaseous contaminant adsorbers with single and mixed VOCS. In Institute of Environmental Sciences and Technology, 1998 Proceedings - Contamination Control (pp. 474-481). NIEHS (National Institute of Environmental Health Sciences / NTP (National Toxicology Program).
Gaseous contamination in clean manufacturing environments is of increasing concern. However, there is no standard test method for low-VBC concentration air cleaning devices, and performance data at use conditions are only rarely available. Test methods for low concentration VOCs challenge of gaseous contaminant adsorbers were developed and applied to three media and several full-scale gaseous contaminant air cleaners using single and mixed VOC challenges. The media tested were granular activated carbon, potassium-permanganate impregnated alumina, and potassium hydroxide impregnated carbon. The test contaminants included several VOCs tested individually and a 5 component VOC mixture at concentrations ranging from 0.1 ppm to about 1 ppm each in air. Adsorbers tested ranged from media samples to 2000 cfm full-scale unitary adsorbers. The media and full-scale tests were conducted at the same nominal bed velocity and the results compared. The tests extended as long as several hundred hours, and provide insight into the performance of gaseous contaminant adsorbers as well as the design and applicability of tests to measure their performance.