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This practice is used for the preparation of test specimens for the internal tearing resistance of paper, board and related materials when a force is applied perpendicular to the machine direction. Materials whose structures are highly directional cannot be properly tested in their cross direction according to TAPPI T 414 “Internal Testing Resistance of Paper,” because, as a rule, the tear turns toward the machine direction as it proceeds. Consequently, it is usually impossible to make a test tear of such a material truly in the cross direction.
Product Details
- Published:
- 2019
- ANSI:
- ANSI Approved
- Number of Pages:
- 3
- File Size:
- 1 file , 230 KB
- Redline File Size:
- 2 files , 2.4 MB
