000 02212nam  2200373za 4500
0019.848591
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008171212s1984    onca|||fob|||f000 0 eng d
040 |aCaOODSP|beng
041 |aeng|bfre
043 |an-cn---
0861 |aEn13-5/85-112E-PDF
1001 |aCheam, V.
24510|aPreservation of physical parameters and major ions in waters |h[electronic resource] / |cby V. Cheam, A.S.Y. Chau, K.K. Kwan.
260 |a[Burlington, Ont.] . : |bAnalytical Methods Division, Quality Assurance and Methods Section, National Water Research Institute, Canada Centre for Inland Waters, |c1984.
300 |a101 p. : |bill.
4901 |aNWRI contribution ; |v85-112
500 |a"December 1984".
500 |aDigitized edition from print [produced by Environment and Climate Change Canada].
504 |aIncludes bibliographical references: p. 15-19.
5203 |a"The centralization of the Water Quality Branch (WQB) laboratories involves longer time periods between sample collection and sample analysis. It was therefore essential that the sample preservation techniques currently in use be thoroughly evaluated and modified where required, if the data generated by the consolidated laboratory are to be reliable. This report describes the results of the first phase of the preservation studies. It deals with a total of 16 physical and inorganic parameters, Sixteen regional, spiked and synthetic waterswere investigated over a four-month period. It was found that most parameters investigated are stable when stored in plastic containers in the dark at 4°C."--Abstract.
546 |aIncludes abstract and executive summary in French.
69207|2gccst|aWater quality
69207|2gccst|aTesting
7001 |aChau, A. S. Y. |q(Alfred Shun-Yuen), |d1941-
7001 |aKwan, K. K.
7101 |aCanada. |bEnvironment Canada.
7102 |aNational Water Research Institute (Canada)
830#0|aNWRI contribution ;|vno. 85-112|w(CaOODSP)9.844121
85640|qPDF|s6.10 MB|uhttps://publications.gc.ca/collections/collection_2017/eccc/En13-5-85-112-eng.pdf