Collection efficiency of air sampling filter papers for polystyrene latex aerosols (in Japanese)
The collection efficiency of nine types of filter papers for air sampling was determined for monodispersed polystyrene latex aerosols by using a forward light scattering photometer. The aerosols were 0.091, 0.198, 0.365, 0.500 and 1.099 mu m in dia., which flowed through a test filter paper at a face velocity from 4.2 to 200 cm/sec. Toyo No. 660, No. 60 and No. LP filter papers exhibited minimum efficiencies at the face velocity range between 10 and 80 cm/ sec, and in the particle size range between 0.1 and 0.5 mu m. The collection efficiencies of Toyo No. 5A and Whatman No. 41 filter papers were over 95% for all the particle sizes at a face velocity higher than 100 cm/sec. Toyo HE-40, HV- 70, Toyo GB-100 and Gelman E filter papers showed collection efficiencies higher than 99%. The theoretical filter efficiency based on single fiber filtering mechanisms and the effect of neighboring fiber interference on the collection efficiency are also discussed. (auth)
- Research Organization:
- Japan Atomic Energy Research Inst., Tokai, Japan
- NSA Number:
- NSA-29-015485
- OSTI ID:
- 4362467
- Journal Information:
- Hoken Butsuri, v. 8, no. 3, pp. 145-152, Journal Name: Hoken Butsuri, v. 8, no. 3, pp. 145-152; ISSN HOKBA
- Country of Publication:
- Japan
- Language:
- Japanese
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