Standard recommended practice for collection by filtration and determination of mass, number, and optical sizing of atmospheric particulates
This recommended practice covers the sample collection of particulate matter from an atmosphere by filtration and for measurement of mass amount, particle size, and particle size distribution of the collected material. Variations in the recommended practice permit sampling to meet a number of widely different assay needs. Although especially applicable to collection of solid particles, the filter method may be used also to collect liquid particles if droplet size need not be determined. A measured and representative sample of the atmosphere under investigation is drawn through a filter medium selected to arrest and permit measurement of the particles that are to be studied. For most purposes, the exposed filter medium is removed from the sampling device and appropriate examination methods then applied to the collected matter. This recommended practice provides for determination of mass loading, particle concentration, particle size and size distribution, and particle inspection. Chemical conposition, radioactivity, and other characteristics of the particles may be determined by additional methods not included in this recommended practice. Studies by phase microscopy, electron microscopy, or other techniques also may be made on the collected material.
- OSTI ID:
- 7294744
- Journal Information:
- Annu. Book ASTM Stand.; (United States), Journal Name: Annu. Book ASTM Stand.; (United States) Vol. 26; ISSN ASTSA
- Country of Publication:
- United States
- Language:
- English
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