Recent advances in particulate air filter testing: Quality assurance framework
, & Hanley, J.T.
Recent advances in particulate air filter testing: Quality assurance framework.
In the last ten years, there has been increased interest in health related aspects of indoor air quality. The application of general ventilation air cleaners and filters has subtly changed from the protection of equipment and prevention of soiling, to protection of people from particulate matter (Ensor et. al, 1994). Providing particle size fractional efficiency filter performance data of known quality is an important developing requirement. ASHRAE Draft Standard 52.2P, currently being subjected to public review, contains a number of provisions for quality assurance (OA) (ASHRAE, 1996). The provisions for OA in the draft standard grew out of the underlying development of the method. Before conducting the research for ASHRAE, Research Triangle Institute (RTI) conducted a number of studies for US EPA where a closely prescribed system of QA was required (Hanley and Smith, 1993), (Hanley et al, 1994). In the ASHRAE research project RP761, RTI applied many of these principles in performing research to support the writing of a new standard. (Hanley, 1992), (Hanley et al, 1995).