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20 ounce Non-Woven Tear Test
A Standard Test Method for Tearing Strength of Fabrics by Falling-Pendulum Type (Elmendorf) Apparatus with a focus on wallpaper applications.
Tear strength represents a critical performance characteristic for commercial wallcovering, particularly in high-traffic environments where impacts and abrasion are common. The ASTM F793 test uses an Elmendorf apparatus to measure the force required to continue a tear once started in the material. This standardized testing provides quantifiable data about material durability under stress conditions that simulate real-world commercial use.
20-ounce non-woven wallcovering represents heavy-duty commercial grade material designed for demanding applications. The non-woven backing provides inherent tear resistance compared to paper-backed alternatives, while the substantial weight specification ensures durability in high-impact areas. However, quantifying this performance through standardized testing provides architects and designers with objective data for material selection decisions.
This certification eliminates guesswork about wallcovering durability in commercial applications. The documented tear strength values provide confidence that material selections will withstand the demands of high-traffic commercial environments like corridors, lobbies, and public spaces where durability directly impacts long-term project success and maintenance costs.
Test Specifications
| Received: 05/2013 | Completed: 12/19/2013 | Letter: C5 | P.0.#: 17324 | Test Report #: 2-99883-0-05 |
| Style: 20 oz Vinyl Wallcovering with Non-Woven Backing. | ||
| Content: Polycotton/Wood Pulp Non-woven Backing | Weight:20 oz Linear Yd. | Color: Sample ID #150336 |
| End Use of Fabric: Commercial Wallcovering | ||
| Category: Elmendorf Tear Specifier: ASTM F 793 /ja | ||
Test Performed
ASTM D 1424 - Standard Test Method for Tearing Strength of Fabrics by Falling-Pendulum Type (Elmendorf) Apparatus
As cited by ASTM D 751-06 - Standard Test Methods for Coated Fabrics Sections 27 - Procedure A - Pendulum Test Method (Elmendorf Apparatus)
Results
| Specimen # | Machine Direction (grams of force) | Cross Machine Direction (grams of force) |
|---|---|---|
| 1 | 3311 | 4490 |
| 2 | 3311 | 4490 |
| 3 | 3719 | 4490 |
| 4 | 3583 | 4400 |
| 5 | 3583 | 4490 |
Classification Criteria
As cited by ASTM F 793 Standard Classification of Wallcovering by Durability Characteristics, Category IV Type I; Category V Type II; Category VI Type III, Commercial Serviceability
| Classification | Criteria | Conclusion |
|---|---|---|
| Category IV Type I | Minimum 194 gf | Passes |
| Category V Type II | Minimum 400 gf | Passes |
| Category VI Type III | Minimum 800 gf | Passes |
Test performed and certified by: