00000nam 2200000zi 4500 9.868349 CaOODSP 20241203113645 m o d f cr ||||||||||| 190214s1987 onc #ob f000 0 eng d CaOODSP eng rda CaOODSP eng fre n-cn--- En13-5/87-64E-PDF Horn, W., author. Upper Great Lakes Connecting Channels interlaboratory performance evaluation study, QM-4 : major ions in surface water : final report / by W.A. Horn, R. Szawiola, D. Takeuchi and P.D. Leishman. Burlington, Ontario, Canada : Research and Applications Branch, National Water Research Institute, Canada Centre for Inland Waters, and the Quality Management Work Group, 1987. 1 online resource (1 volume (various pagings)). text txt rdacontent computer c rdamedia online resource cr rdacarrier NWRI contribution ; 87-64 "May 1987, Revised August 1987." Title from cover. Digitized edition from print [produced by Environment and Climate Change Canada]. Includes bibliographical references. "This report describes the results from the fourth interlaboratory performance evaluation study, QM-4, which consisted of the analysis of 23 major ions and nutrients in surface water. Results were received from ten out of 13 participating laboratories (seven Canadian, three U.S,). Ten of the parameters were evaluated for bias by Youden's ranking technique and results which deviated significantly from the median were flagged. The rest of the parameters were evaluated for outliers by the Grubbs and Dixon tests. The interlaboratory comparability of major ion data was satisfactory for most of the parameters. Included in this report is a summary of each laboratory's performance"--Abstract, page ii. Includes a management perspective and an abstract in English and French. gccst Water quality gccst Water management gccst Assessment Szawiola, R., author. Takeuchi, Debbie, author. Leishman, Pat, author. Canada. Environment Canada. National Water Research Institute (Canada). Research and Applications Branch. Canada Centre for Inland Waters. NWRI contribution ; 87-64. (CaOODSP)9.844121 PDF 4.38 MB https://publications.gc.ca/collections/collection_2019/eccc/en13-5/En13-5-87-64-eng.pdf