Procedure for evaluating and expressing the uncertainty of measurement Basic procedure The basic procedure for evaluation of uncertainty of measurement in quantitative testing is described in literature 1,2. In the following text, only the key elements of the basic procedure are described. The essential component of evaluation on uncertainty is careful identification of all factors
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Procedure for evaluating and expressing the uncertainty of measurement
After reading this article you will..
- understand that the essential component of evaluation on uncertainty is careful identification of all factors that contribute to the uncertainty.
- know that the total uncertainty of a test within laboratory will thus consist of three components: uncertainty within a test, uncertainty between occasions in the same laboratory and uncertainty between laboratories.
Content
Material testing and product properties
- Why test pulp and paper?
- Fibre properties
- Papermaking properties of pulp
- Fluff pulps
- Chemical analysis of pulps
- General physical properties of paper and board
- Optical properties of paper
- End-use properties of printing papers
- End-use properties of packaging papers and boards
- Tissue papers
- Permanent papers
- Reliability of results in physical testing of pulp and paper
- Quality control at the mill
- Standardisation in pulp and paper testing
Authors & references
Edited by:
Petteri Maijanen, ABB
Original authors:
Pirjo Jokio, Mats Hiertner
Based on: Jokio, P., Hiertner, M., Reliability of results in physical testing of pulp and paper (Chapter 13). In: Levlin, J-E. & Sjöderhelm, L. (ed), Pulp and paper testing (Book 17), Papermaking Science and Technology. Jyväskylä. 1999. Fapet Oy. pp. 257 – 267.
References:
- Evaluation of measurement data — Guide to the expression of uncertainty in measurement (GUM), issued by BIPM, IEC, IFCC, ISO, IUPAC and OLIM, International Organization for Standardization JCGM 100:2008 (2008).
- EAL-G23 ”Expression on uncertainty in quantitative testing”, European cooperation for Accreditation of Laboratories (1996).
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This page has been updated 07.04.2021
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