Inertial cascade impactor substrate media for flue gas sampling. Final report, November 1976--Mar 1977

Technical Report · Wed Jun 01 04:00:00 EDT 1977

OSTI ID:6690796

Felix, L G; Clinard, G I; Lacey, G E; McCain, J D

The report summarizes Southern Research Institute's experience with greases and glass fiber filter material used as collection substrates in inertial cascade impactors. Available greases and glass fiber filter media have been tested to determine which are most suitable for flue gas sampling. Greases are probably not useful at above 177C. For higher temperatures, glass fiber filter material can be used. Of 19 greases tested by heating in the laboratory and by exposure to flue gas in the field, only Apiezon H grease performed satisfactorily at above 149C. In experiments to evaluate the use of filter materials as impactor substrates, mass increased as a result of exposure to flue gas for all of the fiber media tested. Laboratory and field studies are described which were directed toward developing a method to passivate glass fiber filter material to SOx induced mass gains. These studies indicate that a H/sub 2/SO/sub 4/ wash, followed by a thorough distilled water/isopropanol rinse, drying, and baking, augmented by in situ conditioning, offers the best hope for reducing SOx induced mass gains. Reeve Angel 934AH glass fiber filter material performed best among the media tested.

• Research Organization: Southern Research Inst., Birmingham, AL (USA)
• OSTI ID: 6690796
• Report Number(s): PB-276583
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
424000* -- Engineering-- Pollution Control Equipment-- (1980-1989)
AIR POLLUTION MONITORS
CASCADE IMPACTORS
CHALCOGENIDES
FIBERGLASS
FILTERS
FLUE GAS
GASEOUS WASTES
GREASES
INDUSTRIAL PLANTS
LUBRICANTS
MATERIALS
OXIDES
OXYGEN COMPOUNDS
SUBSTRATES
SULFUR COMPOUNDS
SULFUR DIOXIDE
SULFUR OXIDES
TESTING
WASTES