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ASTM-D1424:2004 Edition

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D1424-96(2004) Standard Test Method for Tearing Strength of Fabrics by Falling-Pendulum Type (Elmendorf) Apparatus

Published By Publication Date Number of Pages
ASTM 2004 8
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1.1 This test method covers the determination of the force required to propagate a single-rip tear starting from a cut in a fabric and using a falling-pendulum type (Elmendorf) apparatus.

1.2 This test method applies to most fabrics including woven, layered blankets, napped pile, blanket, and air bag fabrics, provided the fabric does not tear in the direction crosswise to the direction of the force application during the test. The fabrics may be untreated, heavily sized, coated, resin-treated, or otherwise treated. Instructions are provided for testing specimens with, or without, wetting.

1.3 This method is suitable only for the warp direction tests of warp-knit fabrics. It is not suited for the course direction of warp knit fabrics or either direction of most other knitted fabrics.

1.4 The values stated in other SI units or U.S. customary units are to be regarded as standard, but must be used independently of each other. The U.S. customary units may be approximate.

1.5 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

PDF Catalog

PDF Pages PDF Title
1 Scope
Referenced Documents
Terminology
2 Summary of Test Method
Significance and Use
Apparatus
FIG. 1
3 Sampling and Test Specimens
Preparation of Apparatus and Calibration
Conditioning
TABLE 1
4 Procedure
Calculations
Report
5 Precision and Bias
TABLE 2
TABLE 3
6 Keywords
A1. ADJUSTMENT OF APPARATUS: USE THE FOLLOWING INFORMATION AS APPLICABLE
A1.1
A1.2
A1.3
A1.4
A1.5
A1.6
A1.7
A1.8
A1.9
7 A1.10
A1.11
A1.12
A1.13
A2. VERIFICATION OF PENDULUM FULL SCALE FORCE RANGE
A2.1
A2.2
8 A3. TYPICAL FULL-SCALE RANGES FOR ELMENDORF TEAR TESTERS
TABLE A3.1
ASTM-D1424
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