Results of the U. S. Geological Survey's Analytical Evaluation Program for Standard Reference Samples Distributed in October 2000 : Usgs Open-File Report 2001-137 pdf
Results of the U. S. Geological Survey's Analytical Evaluation Program for Standard Reference Samples Distributed in October 2000 : Usgs Open-File Report 2001-137 pdf

Results of the U. S. Geological Survey's Analytical Evaluation Program for Standard Reference Samples Distributed in October 2000 : Usgs Open-File Report 2001-137. B F Connor

Results of the U. S. Geological Survey's Analytical Evaluation Program for Standard Reference Samples Distributed in October 2000 : Usgs Open-File Report 2001-137
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Author: B F Connor
Page Count: 124 pages
Published Date: 15 Feb 2013
Publisher: Bibliogov
Publication Country: United States
Language: English
Format: PDF
ISBN: 9781288786077
Download Link: Results of the U. S. Geological Survey's Analytical Evaluation Program for Standard Reference Samples Distributed in October 2000 Usgs Open-File Report 2001-137
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This report presents the results of the U.S. Geological Survey's analytical evaluation program for six standard reference samples -- T-163 (trace constituents), M-156 (major constituents), N-67 (nutrient constituents), N-68 (nutrient constituents), P-35 (low ionic strength constituents), and Hg-31 (mercury) -- that were distributed in October 2000 to 126 laboratories enrolled in the U.S. Geological Survey sponsored interlaboratory testing program. Analytical data that were received from 122 of the laboratories were evaluated with respect to overall laboratory performance and relative laboratory performance for each analyte in the six reference samples. Results of these evaluations are presented in tabular form. Also presented are tables and graphs summarizing the analytical data provided by each laboratory for each analyte in the six standard reference samples. The most probable value for each analyte was determined using nonparametric statistics.

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