||Interlaboratory Validation of the Leaching Environmental Assessment Framework (LEAF) Method 1313 and Method 1316.
A. C. Garrabrants ;
D. S. Kosson ;
L. Stefanski ;
R. DeLapp ;
P. F. A. B. Seignette
||Vanderbilt Univ., Nashville, TN. Dept. of Civil and Environmental Engineering.; North Carolina State Univ. at Raleigh. Dept. of Statistics.; Environmental Protection Agency, Washington, DC. Office of Solid Waste and Emergency Response.; Environmental Protection Agency, Research Triangle Park, NC. Air Pollution Prevention and Control Div.
Leaching methods ;
Fly ash ;
Coal combustion ;
Smelter site soil ;
Environmental impact ;
Leaching Environmental Assessment Framework (LEAF) ;
Relative Standard Deviation (RSD)
||Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy.
This document summarizes the results of an interlaboratory study conducted to generate precision estimates for two parallel batch leaching methods which are part of the Leaching Environmental Assessment Framework (LEAF) and are under review by the U.S. Environmental Protection Agency (EPA) Office of Solid Waste and Emergency Response for potential inclusion into the EPAs Test Methods for Evaluating Solid Waste, Physical/Chemical Methods (SW-846). (1) Method 1313: Liquid-Solid Partitioning as a Function of Eluate pH using a Parallel Batch Extraction Procedure. (2) Method 1316: Liquid-Solid Partitioning as a Function of Liquid-to-Solid Ratio using a Parallel Batch Extraction Procedure. For each of the two methods, the interlaboratory study targeted ten participating laboratories and three study materials a coal combustion fly ash, a cementitious solidified waste analog, and a contaminated smelter site soil. Method precision was evaluated using repeatability relative standard deviation (RSDr) and reproducibility relative standard deviation (RSDR) of eluate concentrations obtained from the interlaboratory study.