| Autor: | Kazuyuki Omae, Masahiro Nakaza, Toyama T |
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| Rok vydání: | 1980 |
| Předmět: | |
| Zdroj: | Sangyo Igaku. 22:372-376 |
| ISSN: | 1881-1302 0047-1879 |
| DOI: | 10.1539/joh1959.22.372 |
| Popis: | A simple badge type diffusion tube, 35 mm photo film plastic case, was used for evaluating time-weighted exposure to H2S using reagent impregnated filters (Whatman No. 1). The black shade of the reagent filter, 10% Pb(OAc)2 and 2% AgNO3 under the concentration of H2S below 20 ppm for 2 to 4 hours agreed inversely to the diffusion length of the tube, and lineally well correlated with dose-time unit (C X T) and the theoretical value of diffusion. The device was proved to be capable of being used in realistic working conditions provided that there is no extreme fluctuations of H2S. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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