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Base de datos CISDOC

ID (ISN) del documento50315
Número CIS 88-1604
ISBN(s) 91-7464-351-7
Año 1987
Número de serie Arbete och hälsa 1987:21
Autor(es) Kuusisto P., Lidén G., Rousk B., Holmquist S.
Título Influence of charged wood particles on the sampling of aerosols using filter cassettes
Título original Uppladdat trädamms inverkan på provtagning med filtermetoden [en sueco]
Información bibliográfica Arbetarskyddsstyrelsen, Publikationsservice, 171 84 Solna, Sweden, 1987. 39p. Illus. 11 ref.
Resumen In this study, wood particles were generated by grinding pine rods. The concentration range was 5-20mg/m3 at relative humidities of 15 to 55%. The influence of particle charge on sampling with plastic filter cassettes was examined using charged cassettes. The overall charge of the generated aerosols was zero. The charge on the individual particles was proportonal to their surface area. Particle charge decreased with increasing humidity. Charge only had a slight effect on filter cassette sampling (about 5%). Relative humidity had no impact on sampling efficiency. The study showed that the use of cascade impactors for detecting the particle size distribution of a charged aerosol leads to large overestimation (almost doubling) of the aerosol's mass median diameter and geometric standard deviation.
Descriptores (primarios) reparto granulométrico; polvo de madera; electricidad estática; producción de aerosoles experimentales; medida del empolvamiento; muestreo por filtración; interferencias; polvos orgánicos
Descriptores (secundarios) informe; toma de muestras y análisis; tamano de las particulas; superficie de las partículas
Tipo de documento E - Libros, informes, actas
Tema(s) Polvos, aerosoles
Broad subject area(s) Riesgos químicos
Navegación por categoria(s) Electricidad