Standard method for continuous separation and collection of particulate and water-soluble gaseous fluorides in the atmosphere (filter and impinger method)

Journal Article · Tue Jan 01 04:00:00 EST 1980 · Annu. Book ASTM Stand.; (United States)

OSTI ID:6448977

This method provides a means for continuous separation and collection on a chemically treated filter and in an impinger of particulate and water-soluble gaseous fluoride in the atmosphere. The sampling rate may vary from 28.3 L/min (1.0 ft/sup 3//min) to 14.2 L/min (0.5 ft/sup 3//min) for longer sampling periods depending on the atmospheric fluoride concentration. This method is not intended to be applied to gaseous fluoride compounds that are not water-soluble. Air is drawn through an air inlet tube and is first passed through an acid-treated prefilter to remove particulate which may contain fluoride and then through an impinger to remove water-soluble fluorides. The prefilter and impinger solution are removed from the sampling system at the end of the selected sampling period and taken to an analytical work area and analyzed by a potentiometric or photometric method.

• OSTI ID: 6448977
• 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

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400102* -- Chemical & Spectral Procedures
400104 -- Spectral Procedures-- (-1987)
500200 -- Environment
Atmospheric-- Chemicals Monitoring & Transport-- (-1989)
54 ENVIRONMENTAL SCIENCES
AEROSOLS
AIR POLLUTION
CHEMICAL ANALYSIS
COLLOIDS
DISPERSIONS
ELEMENTS
FILTERS
FLUIDS
FLUORIDES
FLUORINE
FLUORINE COMPOUNDS
GASES
HALIDES
HALOGEN COMPOUNDS
HALOGENS
NONMETALS
PARTICLES
PHOTOMETRY
POLLUTION
POTENTIOMETRY
SOLS
TITRATION