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| 02219cam 2200373za 4500 |
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| 001 | 9.862470 |
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| 003 | CaOODSP |
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| 005 | 20221107161027 |
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| 007 | cr ||||||||||| |
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| 008 | 180927s1987 oncd||||o f000 0 eng d |
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| 040 | |aCaOODSP|beng |
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| 041 | |aeng|bfre |
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| 043 | |an-cn--- |
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| 086 | 1 |aEn36-508/75E-PDF |
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| 100 | 1 |aCheam, V. |
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| 245 | 10|aNational interlaboratory quality control study no. 33 |h[electronic resource] : |bsulphate in coloured waters / |cV. Cheam and A.S.Y. Chau. |
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| 260 | |aBurlington, Ont. : |bEnvironment Canada, |c1987. |
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| 300 | |avii, 13 p. : |bcharts. |
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| 490 | 1 |aReport series ; |vno. 75 |
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| 500 | |aDigitized edition from print [produced by Environment and Climate Change Canada]. |
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| 500 | |aIssued by the Inland Waters/Lands Directorate, National Water Research Institute, Canada Centre for Inland Waters. |
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| 500 | |aIssued also in French under title: Étude nationale interlaboratoire n° 33 de contrôle de la qualité : les sulfates dans les eaux colorées. |
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| 504 | |aIncludes bibliographical references. |
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| 520 | 3 |a"This report describes an interlaboratory comparison study for the analysis of SO4 in organic contaminated coloured waters. Some 70 Canadian laboratories participated in the analysis of five unpreserved water samples. Because of the interference from coloured matter in the waters, some methodologies, in particular the methylthymol blue colorimetry, were identified as producing results that were biased high. Some other methodologies performed well, particularly ion chromatography"--Abstract. |
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| 546 | |aIncludes abstract in French. |
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| 692 | 07|2gccst|aWater management |
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| 700 | 1 |aChau, A. S. Y. |q(Alfred Shun-Yuen), |d1941- |
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| 710 | 1 |aCanada. |bEnvironment Canada. |
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| 710 | 2 |aNational Water Research Institute (Canada) |
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| 710 | 1 |aCanada. |bInland Waters and Lands Directorate. |
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| 775 | 08|tÉtude nationale interlaboratoire n° 33 de contrôle de la qualité |w(CaOODSP)9.862477 |
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| 830 | #0|aReport series (Canada. Inland Waters and Lands Directorate)|vno. 75|w(CaOODSP)9.862431 |
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| 856 | 40|qPDF|s814 KB|uhttps://publications.gc.ca/collections/collection_2018/eccc/En36-508-75-eng.pdf |
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