ISO 5629:2017
Current
The latest, up-to-date edition.
Paper and board — Determination of bending stiffness — Resonance method
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English
12-07-2017
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ISO 5629:2017 specifies a method for the determination of bending stiffness using the resonance method.
This method gives only a single result for each test piece tested, although in general, bending stiffness values may depend on which surface of the material forms the inner surface of the arc resulting from bending forces.
The bending stiffness of a very wide range of papers and boards can be measured using this method. However, for some materials, such as those listed below, the measured numerical values will not be strictly identical with bending stiffness as defined in 3.1:
a) multi-ply papers and boards in which the component plies can move separately during a test;
b) papers and boards with appreciable curl, especially if the axis of the curl is in the long direction of the test piece;
c) some soft papers with grammage below about 40 g/m2.
This method is not applicable to corrugated boards.
| Committee |
ISO/TC 6/SC 2
|
| DevelopmentNote |
Supersedes ISO/FDIS 5629. (12/2017)
|
| DocumentType |
Standard
|
| Pages |
12
|
| PublisherName |
International Organization for Standardization
|
| Status |
Current
|
| Supersedes |
| Standards | Relationship |
| BS ISO 5629:2017 | Identical |
| SS-ISO 5629:2018 | Identical |
| UNI ISO 5629:2024 | Identical |
| UNE-ISO 5629:2021 | Identical |
| ISO 5725-1:1994 | Accuracy (trueness and precision) of measurement methods and results — Part 1: General principles and definitions |
| ISO 187:1990 | Paper, board and pulps — Standard atmosphere for conditioning and testing and procedure for monitoring the atmosphere and conditioning of samples |
| ISO/TR 24498:2006 | Paper, board and pulps Estimation of uncertainty for test methods |
| ISO 186:2002 | Paper and board — Sampling to determine average quality |
| ISO 536:2012 | Paper and board Determination of grammage |
| TAPPI T 1200 : 2014 | INTERLABORATORY EVALUATION OF TEST METHODS TO DETERMINE TAPPI REPEATABILITY AND REPRODUCIBILITY |
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