ASTM D is a testing standard for those needing to test fabrics made from Acetate, Acrylic, Cotton, Flax, Nylon, Olefin, Polyester, Rayon, Silk, or Wool. ASTM D Tear strength of fabrics test to determine the resistance to the formation of pills and other related surface changes of textile fabrics using Tongue. Designation: D – 96 (Reapproved ) Standard Test Method for Tearing Strength of Fabrics by the Tongue (Single Rip) Procedure.
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The challenges of testing to this standard are: Subscribe to Our Newsletters. Perform the test within 2 min after removal of the specimen from the water. Larger differences are likely to occur under all aetm circumstances. Record values as read from the direct-reading scale to the nearest 0. Instructions are provided for testing specimens with or without wetting. In spite d261 the empirical nature of the reported values, the values are considered to re?
Strong fabrics or fabrics made from glass? Sampling and Test Specimens 7.
ASTM D Tearing Strength of Textile Fabrics – Instron
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. In this test method, a cut is made in a rectangular specimen, which starts a tear. Test specimens then should be randomly assigned in equal numbers to each laboratory for testing. No known procedure is available that can be used with all fabrics to determine the minimum tearing strength.
WaveMatrix 2 for Dynamic Testing. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use. The valleys recorded between the peaks have no specific significance. Email addresses can only contain letters, numbers and the following special characters: Stop the crosshead motion after a total tear of approximately 75 mm 3 in.
The inch-pound units may be approximate. A number in parentheses indicates the year of last reapproval. Onsite Training At Your Facility. For rolls of fabric, take a sample that will exclude fabric from the outer wrap of the roll or the inner wrap around the core of the roll of fabric. Make a preliminary cut 75 mm 3 in.
ASTM D Tear Strength of Fabrics – Tongue Tear (Single Rip)
e2261 The square roots of the components of variance are being reported to express the variability in the appropriate units of measure rather than as the squares of those units of measure. Within this limitation, this test method has no known bias. It is recognized that some constant-rate-of-traversetype CRT tensile testing machines continue to be used.
Bluehill LE for Basic Testing.
Originally published as D — 64 T. Manual clamping is permitted providing no slippage of the specimen is observed.
ASTM D2261 Tearing Strength of Fabrics
Discover simpler and smarter testing with features such as pre-loaded test methods, QuickTest in seconds, enhanced data exporting: Preparation of Test Apparatus and Calibration 8. Precision and Bias Discontinued November and reinstated as D Link to Active This link will always route to the current Active version of the standard. This test method allows the use of the CRT-type tensile machine when agreed upon between the purchaser and the supplier. The resulting data reflects the strength of the yarns, fiber bonds, and fiber interlocks, as well as their resistance to tearing.
It is recognized that some constant-rate-of-traverse-type CRT tensile testing machines continue to be used.
Secure the emery cloth to the jaw faces with pressure-sensitive tape. Typically for woven fabrics, if a small decrease in force occurs at a time when the force is increasing, it is not considered to peak unless the indicated force exceeds the force required to break a yarn.
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Take the specimens to be used for the measurement of the crossmachine direction with the longer dimension parallel to the machine direction. This test method applies to most fabrics, including those which are treated or untreated.
The separation of the jaws is continuously increased to apply a force to propagate the tear. If more than 2 min elapse between taking the wet specimen from the water bath and starting the tensile testing machine, discard the specimen and take another.
In any event, it aatm recommended that computer-processed data be veri?
Lower shifts corresponding to yarn movement do not qualify as peaks since no yarns are broken. B Refer to Software for Series Systems.
Tear Strength of Fabrics – Tongue Tear (Single Rip)
A superscript epsilon e indicates an editorial change since the last revision or reapproval. One tongue is placed in the upper jaw and one tongue is placed in the lower jaw.
The force to continue the tear is calculated from autographic chart recorders or microprocessor data collection systems. Concrete, Asphalt and Rock.
No known procedure is 2 available that can be used with all fabrics to determine the minimum tearing strength. Contact Us View Accessories Catalog. Ensure specimens are free of folds, creases, or wrinkles.