| Parameter | Symbol | Description | |-----------|--------|-------------| | Tensile Strength | Tb | Maximum stress sustained by the test piece during stretching | | Elongation at Break | Eb | Maximum extension at the point of rupture | | Stress at Given Elongation | Modulus | Stress required to achieve a specific elongation (e.g., 100%, 300%) | | Yield Stress | – | Stress at which there is a clear deviation from elasticity |
Requires a tensile testing machine capable of a constant rate of traverse, often a "long-stroke" system to accommodate the high elasticity typical of rubber. jis k 6251 pdf
| Feature | JIS K 6251 (Japan) | ISO 37 (Intl) | ASTM D412 (USA) | | :--- | :--- | :--- | :--- | | | Dumbbell Type 1, 2, 3 | Dumbbell Type 1, 2, 3 | Dumbbell Type C, D, etc. | | Test Speed | 500 mm/min (Standard) | 500 mm/min | 500 mm/min (Common) | | Die Dimensions | Harmonized with ISO | Standard | Slightly different die profiles | | Calculation | Force / Original Cross-Section | Force / Original Cross-Section | Force / Original Cross-Section | Here is a direct comparison based on the
One of the most common points of confusion is the relationship between these three standards. Here is a direct comparison based on the content of relative to its sister documents. " you will mostly find:
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