Abstract |
The Analytical Reference Service is conducted by the Robert A. Taft Sanitary Engineering Center to provide a means of evaluating laboratory methods in the field of environmental sciences and engineering. The Water-Minerals No. 3 sample was similar in composition to samples Type I and Type I-A. It was offered at the request of a number of Analytical Reference Service members to provide opportunity for comparison of individual laboratory results, for further evaluation of current procedures, and for the expression of professional opinions regarding these methods. |