TAPPI T 835 om-22

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1.1 The water absorptivity of corrugating medium is measured by dropping a drop of water on the surface of a specimen and determining the time in seconds for the drop to be completely absorbed as evidenced by the loss of sheen.

1.2 This method is applicable to corrugating medium as it is commercially produced by all processes. It is generally applicable to relatively unsized (water leaf) containerboards. It may not be applicable to more highly sized boards or to grades produced in different grammage (basis weight) than those normally used in corrugating medium.

1.3 The precision and repeatability of test results are dependent on the grade and manufacturing process. Use caution when making comparisons between samples that differ significantly in basis weights or manufacturing process.

1.4 Due in part to the uniqueness of medium, various alternate methods are available for evaluating water absorption. These alternate methods are cited in Section 10 Additional Information.

Product Details

Published:
2022
ANSI:
ANSI Approved
Number of Pages:
3
File Size:
1 file , 220 KB
Note:
This product is unavailable in Ukraine, Russia, Belarus

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