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1335557 
Technical Report 
Emery 3004 as a challenge aerosol: Operational experience at Westinghouse Hanford Company 
Steffen, DH; Girres, CK 
1992 
NTIS/02976850 
GRA and I 
GRA and I 
High Efficiency Particulate Air (HEPA) filter systems are tested periodically by chemicals such as dioctyl phthalate (DOP) and di-2-ethylhexyl sebacate (DOS) to ensure adequate performance. For eight months, Westinghouse Hanford Company used Emery 3004 as a challenge aerosol for in-place HEPA filter system testing. This paper discusses the operational advantages of Emery 3004 and further discusses our test results. 
Air Cleaning Systems; *Hanford Reservation; *Particulates; Aerosols; Air Filters; Distribution; Field Tests; Penetrometers; Performance; Safety; Meetings; Air pollution control equipment; EDB/540120