Main components of uncertainty in pulp and paper testing Materials and sampling Fibre-based materials always contain variations. The variation is natural. Pulp, paper or board consists of individual fibres that differ in length, width, shape, chemical structure etc. The differences and variations of properties of fibres increase during pulping. The papermaking process itself also creates
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Main components of uncertainty in pulp and paper testing
After reading this article you will..
- understand that the main uncertainty components of pulp, paper and board testing are material and sampling, test method, equipment, test environment and personnel.
- understand that having well-trained and competent personnel is very important in order to reduce uncertainty in testing.
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.
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This page has been updated 07.04.2021
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