Trouser-shaped specimen
Specimen: 200 ± 2 mm × 50 ± 1 mm, with a 100 ± 1 mm central slit. Each leg is held in a separate grip.
At least five specimens per direction. Tear-end mark: 25 ± 1 mm from the uncut end.
EN ISO 13937
Tear properties of fabrics
Requirements & test methods
ISO 13937-2 measures the force needed to propagate a single tear in a trouser-shaped fabric specimen.
Tear propagation
Standard grip separation: 100 mm. Extension rate: 100 mm/min.
Tear force in N, by direction and conditioning, with abnormal tear paths recorded.
Tear force
Measures resistance to extending an existing cut.
Acceptance limits come from the applicable clothing specification.
| Direction | Tear force |
|---|---|
| Across warp | 30 N |
| Across weft | 25 N |
Where the standard is used
Foundry
Tear-force testing to support foundry fabric specifications.
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Oil & Gas
Tear-force testing for industrial workwear fabrics where damage and tear propagation are durability concerns.
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Electrical
Tear-force testing for utility workwear fabrics.
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Welding
Tear-force testing for welding workwear fabrics to support the relevant mechanical-performance requirements.
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Wildland
Tear-force testing for fabrics used in wildland clothing, where snagging and mechanical damage are relevant concerns.
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Structural Firefighter
Tear-force testing for firefighter garment materials, using the method required by the applicable product specification.
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