Standardized Measurement
International testing protocols define the procedures for determining the force and elongation characteristics of paper and board. Iso 1924 tensile limits establish the minimum and maximum values for energy absorption and breaking force when a strip is pulled at a constant rate of elongation. This standard ensures that data from different mills or laboratories are comparable across the global supply chain.
Test Execution
Precise preparation of the test pieces is required to avoid edge defects that could lead to premature failure. Compliance with iso 1924 tensile limits requires specific environmental conditions, typically 23 degrees Celsius and 50 percent relative humidity, to maintain the moisture content of the fibers. The results guide the selection of paper grades for applications like heavy duty sacks or carrier bags where strength is the primary requirement.
Performance Verification
Buyers use these standardized values to verify that a shipment of linerboard meets the structural needs of their corrugating process. Because iso 1924 tensile limits are recognized worldwide, they provide a common language for specifying the performance of packaging materials in international trade. The measurement of tensile stiffness and stretch at break helps converters predict how a web will behave under the high tensions of a modern printing press.
Any deviation from these specified limits can result in web breaks or registration errors that reduce the overall yield of a production run.
