00000nam 2200000zi 4500 9.870539 CaOODSP 20241203113647 m o d f cr nn||||||||| 190325q1986 onca ob f000 0 eng d CaOODSP eng rda CaOODSP eng fre n-cn--- En13-5/86-90E-PDF Alkema, H., author. Sumary report IRQC studies 120-131 (Sept. 84 - Aug. 85) trace metals, major ions, nutrients and physical parameters in spiked samples / H. Alkema. [Burlington, Ontario] : [Environment Canada, National Water Research Institute], [1986]. 1 online resource (1 volume (various pagings)) text txt rdacontent computer c rdamedia online resource cr rdacarrier NWRI contribution ; 86-90 Cover title. Digitized edition from print [produced by Environment and Climate Change Canada]. Includes bibliographical references. "At the request of WQB Headquarters, the interregional quality control program (IRQC) was initiated to assess comparability of analysis data generated by the five regional laboratories. Twelve studies were distributed bi-monthly between September 1984 and August 1985. The studies dealt with the analysis of trace (heavy) metals, major ions, nutrients and physical parameters in spiked water samples. In this annual report, data is presented and performance is evaluated for some 40 parameters involving some 100 analytical procedures. Generally, analyses were performed very well, nevertheless a number of key analyses were identified to be out of control and subsequently brought to the attention of laboratory managers to help improve the quality of the data and to alert them to resevaluate their internal quality control."--Executive Summary. Includes executive summary in French. gccst Water quality gccst Laboratories gccst Quality control Canada. Environment Canada. National Water Research Institute (Canada). Analytical Methods Division. Canada Centre for Inland Waters. NWRI contribution ; 86-90. (CaOODSP)9.844121 PDF 6.69 MB https://publications.gc.ca/collections/collection_2019/eccc/en13-5/En13-5-86-90-eng.pdf