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PROCEEDINGS OF THE SYMPOSIUM ON THE RECOVERY OF INDICATOR ORGANISMS EMPLOYING MEMBRANE FILTERS HELD AT THE MEETING OF THE AMERICAN SOCIETY FOR TESTING AND MATERIALS, COMMITTEE D-19 ON WATER, FORT LAUDERDALE, FLORIDA ON JANUARY 20-21, 1975
Citation:
Bordner, R., C. Frith, AND J. Winter. PROCEEDINGS OF THE SYMPOSIUM ON THE RECOVERY OF INDICATOR ORGANISMS EMPLOYING MEMBRANE FILTERS HELD AT THE MEETING OF THE AMERICAN SOCIETY FOR TESTING AND MATERIALS, COMMITTEE D-19 ON WATER, FORT LAUDERDALE, FLORIDA ON JANUARY 20-21, 1975. U.S. Environmental Protection Agency, Washington, D.C., EPA/600/9-77/024 (NTIS PB273587).
Description:
The symposium brought together users, manufacturers, research scientists and representatives of government agencies to exchange technical information and review the performance of membrane filters for water and wastewater analyses. Problems with the recovery of bacterial indicators had been reported; they were most pronounced in the fecal coliform test. A key question was whether the cause was differences in sample types, membrane filters or the test method employed. Professionals experienced in water analysis presented relevant field experiences, laboratory data and research findings and discussed problems concerning recovery of organisms stressed or injured by environmental factors. Media, transport phenomena, physical and chemical characteristics of membranes, membrane sterilization methods, incubation temperatures, techniques for comparison of methods, data analysis, and the status of the proposed ASTM methods for evaluating membrane filters were discussed.