Testing Standard:
TAPPI T441 Water Absorptiveness of Sized (Non-Bibulous) Paper, Paperboard, and Corrugated Fiberboard (Cobb Test) ie. TAPPI T441 Cobb Test
Standard Number
TAPPI T441
Standard Title
Water Absorptiveness of Sized (Non-Bibulous) Paper, Paperboard, and Corrugated Fiberboard (Cobb Test), Test Method
Overview for TAPPI T441 Cobb Test:
Rationale for TAPPI T441 Cobb Test:
Key Points:
- Determines the need for moisture barrier coatings and the sizing of paper
- Using this test method verifies compliance with UN DOT regulations
- Utilize this test method to ensure quality control
- Verifies the amount of surface coating used is sufficient
Related Standards:
- ASTM D3285 – Test Method for Water Absorptiveness of Non-Bibulous Paper and Paperboard (Cobb Test)
- ISO 535 – Paper and Board – Determination of Water Absorptiveness – Cobb Method
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Related Testing Standards
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