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National interlaboratory quality control study no. 33 : sulphate in coloured waters / V. Cheam and A.S.Y. Chau.: En36-508/75E-PDF

"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.

Permanent link to this Catalogue record:
publications.gc.ca/pub?id=9.862470&sl=0

Publication information
Department/Agency
  • Canada. Environment Canada.
  • National Water Research Institute (Canada)
  • Canada. Inland Waters and Lands Directorate.
TitleNational interlaboratory quality control study no. 33 : sulphate in coloured waters / V. Cheam and A.S.Y. Chau.
Series title
  • Report series ; no. 75
Publication typeMonograph - View Master Record
Language[English]
Other language editions[French]
FormatDigital text
Electronic document
Note(s)
  • Digitized edition from print [produced by Environment and Climate Change Canada].
  • Issued by the Inland Waters/Lands Directorate, National Water Research Institute, Canada Centre for Inland Waters.
  • Issued also in French under title: Étude nationale interlaboratoire n° 33 de contrôle de la qualité : les sulfates dans les eaux colorées.
  • Includes bibliographical references.
  • Includes abstract in French.
Publishing information
  • Burlington, Ont. : Environment Canada, 1987.
Author / Contributor
  • Cheam, V.
  • Chau, A. S. Y. (Alfred Shun-Yuen), 1941-
Descriptionvii, 13 p. : charts.
Catalogue number
  • En36-508/75E-PDF
Subject terms
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