||Evaluation of turbidimetric methods for monitoring of asbestos fibers in water /
Chatfield, Eric J. ;
Dillon, M. J. ;
Stott, W. R.
||Ontario Research Foundation, Mississauga.;Environmental Research Lab., Athens, GA.
|| U.S. Environmental Protection Agency, Environmental Research Laboratory,
Drinking water--Contamination--United States. ;
Water analysis ;
Performance evaluation ;
Design criteria ;
Water pollution ;
Chemical analysis ;
Water pollution detection
||Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy.
||88 pages ; 28 cm
A commercially available turbidimeter, modified by the addition of a magnet, was evaluated for the measurement of asbestos in water. The instrument was used to measure the turbidities of asbestos fiber dispersions in non-boiling still water, as functions of both mass and numerical fiber concentrations, for crocidolite, amosite and chrysotile. Results showed that, for well-characterized water sources, the turbidimeter could be used for routine monitoring of amphibole asbestos fibers at the 1 million fibers per liter (MFL) level, if a simple pre-concentration step was included. Additional modifications would be required before the detection level could be reduced to make the technique useful for monitoring of chrysotile at the 1 MFL level.
Caption title. "August 1984." "EPA-600/4-84-071." Microfiche.