00000nam 2200000za 4500 9.850014 CaOODSP 20241203113641 cr ||||||||||| 180115s1986 onc |||fo f000 0 eng d CaOODSP eng n-cn--- En13-5/86-171E-PDF Alkema, H. Summary report, IRQC studies 132-143 (Sept. 85 - Aug. 86) for trace metals, major ions, nutrients and physical parameters in surface waters [electronic resource] / H. Alkema. [Burlington, Ont.] : [Quality Assurance and Methods Section, National Water Research Institute], [1986]. 1 v. (various pagings) NWRI contribution ; no. 86-171 Title from cover. Digitized edition from print [produced by Environment and Climate Change Canada]. "This compiled report of twelve quality control studies (QC) evaluates the chemical analysis of surface waters for laboratories in the Federal Inter-Regional Quality Control (IRQC) program. This report, which covers the period from September 1985 to August 1986 (QC studies IR 132 to IR143), describes the following: study design, treatment of data, performance indicators, and comments on individual laboratory performance"--Abstract. gccst Water quality gccst Laboratories gccst Quality control Canada. Environment Canada. National Water Research Institute (Canada) NWRI contribution ; no. 86-171 (CaOODSP)9.844121 PDF 11.17 MB https://publications.gc.ca/collections/collection_2018/eccc/En13-5-86-171-eng.pdf