Uncertainty estimation of online measurement and manual sampling in water quality measurements
Year of publication
2016
Authors
Ojanen-Saloranta, Maija
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.
Show moreOrganizations and authors
VTT Technical Research Centre of Finland Ltd
Ojanen-Saloranta Maija 
Publication type
Publication format
Monograph
Audience
Professional
MINEDU's publication type classification code
D4 Published development or research report or study
Publication channel information
Journal/Series
VTT Technology
Publisher
VTT Technical Research Centre of Finland
Issue
263
ISSN
ISBN
Open access
Open access in the publisher’s service
Yes
License of the publisher’s version
Other license
Self-archived
No
Other information
Fields of science
Environmental engineering
Keywords
[object Object],[object Object],[object Object],[object Object],[object Object]
Language
English
International co-publication
No
Co-publication with a company
No
The publication is included in the Ministry of Education and Culture’s Publication data collection
Yes