Testing Standard:
TAPPI T411 Thickness (Caliper) of Paper, Paperboard, and Combined Board
Standard Number
TAPPI T411
Standard Title
Thickness (Caliper) of Paper, Paperboard, and Combined Board, Test Method
Overview for TAPPI T411 Caliper of Paper:
TAPPI T411 Test Method is the measurement of a single sheet thickness of paper and corrugated material. With thickness related to the flexural properties of a fiberboard shipper, it is important to verify the caliper to find potential issues in the overall strength of the packaging materials. Purple Diamond Testing offers TAPPI T411 Thickness (Caliper) of Paper, Paperboard, and Combined Board as part of our packaging compliance and validation services.
The test procedure involves placing the sample between the platens of the micrometer, applying a specified pressure, and then taking the reading of the thickness or caliper. The standard allows for variations in temperature, humidity, and pressure to ensure consistent results. The TAPPI T411 caliper test is commonly used in the paper and packaging industries to determine the thickness and stiffness of paper and paperboard products.
Rationale for TAPPI T411 Caliper of Paper:
TAPPI T411 – Thickness (Caliper) of Paper, Paperboard, and Combined Board. Data is obtained using a standard constant pressure for all materials being evaluated to ensure a correct measurement across all material types. The data obtained can be used to verify manufacturer specifications, compare varied materials, and aid in design.
Key Points:
- Correlates to other paper characteristics, such as TAPPI T403 for bursting strength
- Crucial when designing corrugated packaging
- Utilize this test method to ensure quality control
Related Standards:
- ISO 534 – Paper and Board – Determination of Thickness, Density and Specific Volume
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