This method measures the force perpendicular to the plane of the paper required to tear multiple plies
through a specified distance after the tear has been started using an Elmendorf-type tearing tester. It does not measure edge-tear resistance. The measured results may be used to calculate the approximate tearing resistance of a single sheet. It is not suitable for single-ply tear testing.
For highly directional boards and papers, prepare specimens according to T 496 Specimen Preparation
for Cross Directional Internal Tearing Resistance for Paper, Paperboard and Related Materials.
Caution is recommended in interpreting results from weakly bonded sheets, especially those containing
lightly refined long-fibered chemical pulps. The low rate of tear when multiple plies are torn simultaneously may produce erroneously high results.
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| Number of Pages : | 6 |
| Published : | 11/01/2012 |
