Harris D.B. Procedures for cascade impactor calibration and operation in process streams

Environmental Protection Agency, Office of Research and Development, Office of Energy, Minerals, and Industry, Industrial Environmental Research Laboratory, 1977. — 122 p.
The report is an outgrowth of discussions by members of a working group of EPA/IERL-RTP personnel, contractors, and independent experts who met to develop uniform procedures for the field use of intertial impactors to determine particle size distributions from industrial particulate sources. It is intended to promote individual tests of similar quality so that valid comparisons can be made. Procedures for measuring particle size which have yielded valid data in stationary sources are presented based on laboratory and field experience. Following these methods should help the users of cascade impactors to obtain the information desired. The report discusses the preliminary survey, the sampling apparatus, testing procedures, data analysis, calibration procedures, quality assurance, and reporting requirements. The information applies to cascade impactors in general. Specific commercial impactors are discussed.