ISO 1924-3 is an ISO tensile testing method for paper and board using a constant rate of elongation (CRE) of 100 mm/min. It is commonly used to generate comparable strength and stiffness data for quality control, product development, and supplier/customer specifications.
This standard is equipment-driven: results depend on using a suitable paper tensile tester (or universal testing machine configured for paper) with appropriate grips, force measurement, and CRE control at the required speed. If you need help matching your material and reporting needs to the correct setup, talk with our team.
ISO 1924-3:2005 Paper and board — Determination of tensile properties — Part 3: Constant rate of elongation method (100 mm/min)
ISO 1924-3:2005 is an International Standard for determining key tensile properties of paper and board at a specified CRE test speed of 100 mm/min.
It focuses on tensile behavior under controlled, repeatable loading conditions so labs can compare results across machines, locations, and production lots when the same method and speed are used.
Quick Definition
ISO 1924-3 defines a CRE tensile test for paper and board run at 100 mm/min to measure tensile strength, strain at break, tensile energy absorption, and tensile stiffness, and to calculate common index values and modulus of elasticity.
What This Standard Covers
This method covers tensile testing of paper and board specimens using a testing machine operating at a constant rate of elongation of 100 mm/min.
| Measured / calculated result types | Typical use in reports |
|---|---|
| Tensile strength | Strength comparison by direction (e.g., machine direction vs cross direction) |
| Strain at break | Elongation-to-failure behavior for converting, printing, or packaging performance evaluation |
| Tensile energy absorption (TEA) | Energy-to-break for toughness-type comparisons |
| Tensile stiffness | Stiffness comparison and process monitoring |
| Index values and modulus of elasticity (calculated) | Normalization and engineering-style comparisons where required |
Why This Standard Matters in Testing
Tensile properties are widely used as acceptance and process-control indicators for paper and board. ISO 1924-3 helps make that data more comparable by specifying a defined CRE tensile approach and a defined test speed (100 mm/min).
Because paper is rate-sensitive, test speed is not a minor detail. For purchasing specifications, inter-lab comparisons, or compliance testing, the cited part and speed should match exactly.
Common Materials, Product Types, or Applications Covered
ISO 1924-3 is used for paper and board grades where tensile strength, elongation, energy absorption, and stiffness are important to manufacturing control and end-use performance.
Common examples: Packaging papers and boards, printing and writing papers, liner and medium-type materials, and other converted paper/board products where tensile behavior is specified by customers or internal QA/QC plans.
Common Test or Verification Workflow
A typical ISO 1924-3 workflow centers on producing repeatable tensile results at the specified CRE speed and reporting the required tensile properties and calculated indices.
Common workflow: Prepare specimens in the required orientations, condition and handle specimens as required by the standard and any referenced conditioning practices, run tensile tests at 100 mm/min CRE, then calculate and report tensile strength, strain at break, TEA, tensile stiffness, and required derived indices/modulus values.
Equipment Commonly Used for This Standard
ISO 1924-3 is typically performed on a paper tensile tester or a universal testing machine configured for paper/board tensile testing and capable of maintaining a constant rate of elongation at 100 mm/min.
Common equipment elements: CRE-capable test frame, suitable load cell capacity for expected paper/board forces, grips designed to hold paper without slippage or premature grip breaks, and software for curve capture and calculation of TEA, stiffness, indices, and modulus where required.
If you are comparing frame types, grip styles, or software calculations for ISO 1924-3 reporting, you can request pricing for a configuration matched to your material range and throughput.
How to Read This Designation or Revision
ISO 1924-3 refers to Part 3 of the ISO 1924 series for tensile properties of paper and board.
ISO 1924-3:2005 indicates the published edition year (2005) for this part. When results are used for compliance, procurement, or dispute resolution, always cite the full designation (including the year) and confirm the required test speed is 100 mm/min.
Related Standards, Methods, or Frameworks when useful
Paper and board testing programs commonly combine tensile results with other physical tests (for example, basis weight, thickness, or tear resistance) depending on product requirements and the end-use environment.
When a customer specification references “ISO 1924” without a part number, clarify which part and test speed is intended before running qualification tests or purchasing equipment.
Talk with us about ISO 1924-3 test setups
If you need help selecting a CRE tensile system for paper/board at 100 mm/min—especially around grip selection, force capacity, and calculated reporting outputs—contact our team with your material type, basis weight range, and whether you need MD/CD testing.