Uncertainty estimation of online measurement and manual sampling in water quality measurements

Research output: Book/ReportReport

Abstract

In this work, the measurement uncertainty of online environmental measurements was compared to the overall measurement uncertainty of manual sampling and laboratory analysis. The measured parameters were pH, turbidity, suspended solids and COD. The measurement results and uncertainty of online measurements were compared with the uncertainties given by two accredited analysis laboratories. The uncertainty related to sampling for the laboratory analyses was also estimated. The uncertainty estimation for online measurements was carried out according to Evaluation of measurement data - Guide to the expression of uncertainty in measurement (JCGM 100:2008, GUM 1995 with minor corrections). The sampling uncertainty was estimated according to Nordtest TR 604 Uncertainty from Sampling guide.
Original languageEnglish
Place of PublicationEspoo
PublisherVTT Technical Research Centre of Finland
Number of pages23
ISBN (Electronic)978-951-38-8438-3
Publication statusPublished - 2016
MoE publication typeNot Eligible

Publication series

SeriesVTT Technology
Number263
ISSN2242-1211

Fingerprint

water quality
sampling
turbidity
laboratory
analysis
evaluation
parameter

Keywords

  • measurement uncertainty
  • environmental measurement
  • water quality
  • online measurement
  • sampling

Cite this

Ojanen-Saloranta, M. (2016). Uncertainty estimation of online measurement and manual sampling in water quality measurements. Espoo: VTT Technical Research Centre of Finland. VTT Technology, No. 263
Ojanen-Saloranta, Maija. / Uncertainty estimation of online measurement and manual sampling in water quality measurements. Espoo : VTT Technical Research Centre of Finland, 2016. 23 p. (VTT Technology; No. 263).
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Ojanen-Saloranta, M 2016, Uncertainty estimation of online measurement and manual sampling in water quality measurements. VTT Technology, no. 263, VTT Technical Research Centre of Finland, Espoo.

Uncertainty estimation of online measurement and manual sampling in water quality measurements. / Ojanen-Saloranta, Maija.

Espoo : VTT Technical Research Centre of Finland, 2016. 23 p. (VTT Technology; No. 263).

Research output: Book/ReportReport

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N2 - In this work, the measurement uncertainty of online environmental measurements was compared to the overall measurement uncertainty of manual sampling and laboratory analysis. The measured parameters were pH, turbidity, suspended solids and COD. The measurement results and uncertainty of online measurements were compared with the uncertainties given by two accredited analysis laboratories. The uncertainty related to sampling for the laboratory analyses was also estimated. The uncertainty estimation for online measurements was carried out according to Evaluation of measurement data - Guide to the expression of uncertainty in measurement (JCGM 100:2008, GUM 1995 with minor corrections). The sampling uncertainty was estimated according to Nordtest TR 604 Uncertainty from Sampling guide.

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Ojanen-Saloranta M. Uncertainty estimation of online measurement and manual sampling in water quality measurements. Espoo: VTT Technical Research Centre of Finland, 2016. 23 p. (VTT Technology; No. 263).