00000nam 2200000zi 4500 9.870563 CaOODSP 20241203113647 m o d f cr nn||||||||| 190326q1987 onc o f000 0 eng d CaOODSP eng rda CaOODSP n-cn--- En13-5/87-150E-PDF Alkema, H., author. Summary report for inter-regional quality assurance studies 144-155 (Sept. 86-Aug. 87) for inorganic constituents in surface waters / H. Alkema. Burlington, Ontario : Environment Canada, National Water Research Institute, [1987]. 1 online resource (1 volume (various pagings)) text txt rdacontent computer c rdamedia online resource cr rdacarrier NWRI contribution ; 87-150 Cover title. 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 1986 to August 1987 (QC studies IR144 to IR155), 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). Quality Assurance and Methods Section‏. NWRI contribution ; 87-150. (CaOODSP)9.844121 PDF 12.53 MB https://publications.gc.ca/collections/collection_2019/eccc/en13-5/En13-5-87-150-eng.pdf