What is ISO/TR 24498 - Paper, board and pulps about?
ISO/TR 24498 presents guidelines for a methodology for the estimation of the uncertainty of methods for testing pulps, paper, board, cellulosic nanomaterials, and lignins, as well as products thereof containing any portion of recycled material or material intended for recycling.
Who is ISO/TR 24498 - Paper, board and pulps for?
ISO/TR 24498 on estimation of uncertainty for test methods by interlaboratory comparisons is useful for:
- Paper mills
- Quality control personnel
- Testing laboratories
Why should you use ISO/TR 24498 - Paper, board and pulps?
One step in the development of any new standard test method is to estimate the uncertainty of the method. After such a procedure, a "Precision statement" is usually included in ISO test methods for pulp, paper and board and is recommended by ISO/TC 6 for all new and revised ISO/TC 6 standards. This is normally performed in a precision experiment, in which samples are sent to a number of laboratories and the results are compared. Such a precision experiment is often referred to as "interlaboratory comparative testing".
ISO/TR 24498 helps you set up an interlaboratory study and lays out a uniform framework for the study to make it easier to perform a comparative analysis of results from different laboratories.
Overall, the guidelines of ISO/TR 24498 enable you to verify the consistency of test methods used for paper, pulps, boards and cellulosic nanomaterials and enhance the accuracy (precision) of these test results.
What’s changed since the last update?
PD ISO/TR 24498:2019 replaces ISO/TR 24498:2006, which has been technically revised. The main changes in PD ISO/TR 24498:2019 compared to ISO/TR 24498:2006 are as follows:
- The scope has been modified as the revised document presents guidelines for a methodology for the estimation of the uncertainty of methods for testing the properties of pulp, paper, board and cellulosic nanomaterials.
- Terms and definitions have been updated
- Clauses 4, 5 and 6 have been entirely revised
- New information has been introduced regarding the procedure, preparation of an interlaboratory study, including information on the participating laboratories, sample preparation and distribution and documentation for the interlaboratory study
- Specifications for cellulosic nanomaterials and for microbiological tests have been introduced
- 7.3, Clauses 8, 9, 10 and Annexes A and C have been updated