Record Display for the EPA National Library Catalog


OLS Field Name OLS Field Data
Main Title Sample Preservation: A Progress Report.
Author Nash, H. D. ; Geldreich, E. E. ;
CORP Author Municipal Environmental Research Lab., Cincinnati, OH.
Year Published 1984
Report Number EPA-600/D-84-041;
Stock Number PB84-151216
Additional Subjects Preservatives ; Coliform bacteria ; Bacteria ; Detection ; Stability ; Culture media ; Stabilizing agents ;
Library Call Number Additional Info Location Last
NTIS  PB84-151216 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. 06/23/1988
Collation 20p
The primary objective of this study is to evaluate chemical preservatives which can be added to the sample bottle before collection which will be effective in stabilizing the coliform density for not less than 48 hours using current methodology for detecting coliform organisms. This study evaluates the stability of control samples stored at 22 C and 4 C which are compared to each other and to the stability of test samples which contained different preservatives and preservative concentrations. Candidate preservations were chosen based upon their reported stabilizing effect in foods, bacteriological holding medium and as stabilizing agents used to prepare quality control performance samples.