Testing Products for ASTM D2261
APP-D2261Measures the force to continue a tear in a fabric that has been nicked into two tongues. This configuration focuses on the Newton-Series control architecture to ensure high-fidelity data acquisition. Utilizing a 32-bit digital signal processor, the system provides a superior Signal-to-Noise Ratio (SNR), which is essential for capturing precise material transitions that lower-resolution systems often miss.
The load frame for this application has been selected to provide the most cost-effective solution capable of meeting the standard’s peak force requirements. While TestResources offers a wide range of frame geometries, this specific selection represents the optimal balance between laboratory CAPEX and technical compliance. Any frame in our catalog meeting the minimum load rating will adhere to the standard; however, this configuration is our primary recommendation for those seeking a reliable, streamlined testing platform without unnecessary complexity.=
The Average of Five Peaks: The result isn’t the highest force, but the average of the five highest peaks.
Use Pneumatic Grips to ensure the tongues don’t slide as the tear propagates.
Regulatory & Test Details
| App Id | APP-D2261 |
|---|---|
| App Standard | ASTM D2261 |
| Standard Organization | ASTM |
| Test Type | Tear |
| Material Type | Textiles |
| Specimen Type | 3" x 8" Rectangle |
| Industry Type | Upholstery |
| Min Force Kn | 1 |
| Max Force Kn | 5 |
| Max Spd Mm/m | 50 |
| Expert Spd | Standard Tongue-Tear speed. |
| Mach Recommend | TestResources 100-1000-6 | Single Column UTM | 4.4 kN 150 mm |
| Pointer App Software | N-ASTM-D2261 |
| Pointer Fixture Family | G-ASTM-D2261 |
| Pointer Strain Family | E-ASTM-D2261 |
Implementation Commentary
This is the most common Tongue Tear test for heavy-duty workwear and denim.
Common Pitfalls
Misinterpreting a transfer (where the tear turns 90 degrees) as a valid material failure.