The filtration efficiency of organic vapor sampling tubes against particulates
Autor: | Charles I. Fairchild, Marvin I. Tillery |
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Rok vydání: | 1977 |
Předmět: |
Inert
Pollution Air Pollutants Materials science Sorbent media_common.quotation_subject Public Health Environmental and Occupational Health Air Pollutants Occupational Particulates equipment and supplies complex mixtures law.invention Adsorption law visual_art Environmental chemistry visual_art.visual_art_medium Gases Particle Size Charcoal Filtration Air filter media_common |
Zdroj: | American Industrial Hygiene Association journal. 38(6) |
ISSN: | 0002-8894 |
Popis: | The particulate filtration efficiency of industrial organic vapor sampler tubes is of interest for air sampling in work environments containing toxic materials as both vapor and particulate, or where inert particles contain adsorbed toxic material. Particulate collection efficiencies, measured with dioctylphthalate and polystyrene latex aerosols ranged from 70-90%. However, only 20% of this total is deposited on the active sorbent (charcoal granules). Considerable variability in collection efficiency between tubes was observed. Recommendations are made for obtaining improved contaminant estimates using these tubes. |
Databáze: | OpenAIRE |
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