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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Originally published as D — 64 T. The reported value obtained asstm not directly related to the force required to initiate or start a tear.
ASTM D2261 Tearing Strength of Fabrics
The highest peaks appear to reflect the strength of the yarn components, fiber bonds, or fiber interlocks, individually or in combination, needed to stop a tear in a fabric of the same construction. Please confirm that you agree with our privacy and cookies policy to submit ashm form.
Manual clamping is permitted providing no slippage of the specimen is observed. 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. If a bias is found, either its cause must be found and corrected, or the purchaser and the supplier must agree to interpret future test results zstm consideration to the known bias.
Lower shifts corresponding to yarn movement do not qualify as peaks since no yarns are asgm. Email addresses must contain the symbol.
The inch-pound units may be approximate. Disengage the pawls from the rachet to render them inoperative. 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.
ASTM D Tear Strength of Fabrics – Tongue Tear (Single Rip)
For fabrics not readily wet out with water, such as those treated with waterrepellent or water-resistant materials, add a 0. The inch-pound units may be approximate. How can we help you? The highest peaks appear to re?
Take the specimens to be used for the measurement of machine direction with the longer dimension parallel astmm the cross-machine direction. Larger differences are likely to occur under all other circumstances.
d2261 B Refer to NOTE 2—The tabulated values of the critical differences should be considered to be f2261 general statement, particularly with respect to betweenlaboratory precision. When testing to this standard, it is important to consider data rate. Your comments will receive careful consideration at a meeting of the responsible technical committee, which you may attend. Historical Version s – view previous versions of standard. Ensure specimens are free of folds, creases, or wrinkles.
When specimens are to be tested wet, take the specimens from areas adjacent to the dry test specimens.
Contact Us View Accessories Catalog. Some modification of clamping techniques may be necessary for a given fabric due to its structure. Make a preliminary cut 75 mm 3 in. Software for Series E2261. Email addresses can only contain letters, numbers and the following special characters: No known procedure is 2 available that can be used with all fabrics to determine the minimum tearing strength. Before a meaningful statement can be made about two speci?
The components of variance for tongue tear strength expressed as standard deviations were calculated to be the values listed in Table 3.
The average results from the two laboratories should be compared using the appropriate statistical analysis and an acceptable probability level chosen by the two parties before testing is begun. It is recognized that some constant-rate-of-traversetype CRT tensile testing machines continue to be used. The fabrics may be untreated, heavily sized, coated, resin-treated, or otherwise treated. The fabrics may be untreated, heavily sized, axtm, resin-treated, or otherwise treated.
Tear Strength of Fabrics – Tongue Tear (Single Rip)
The resulting data reflects the strength of the yarns, fiber bonds, and fiber interlocks, as well as their resistance to tearing. In spite of the empirical nature of the reported values, the values are considered to reflect comparative performance of similar fabrics tested and measured in the same way. Link to Active This link will always route to the current Active version of the standard.
Describe the material or product sampled and the method of sampling used. Consequently, no multi-fabric comparisons were made. The force to continue the tear is calculated from autographic chart recorders or microprocessor data collection systems. ASTM International takes no position respecting the validity of any patent rights asserted in connection with any item mentioned in this standard.
As a consequence, these test instruments may be used when agreed upon between the purchaser and the supplier. Within this limitation, this test method has no known bias.
Bluehill Universal Brochure Bluehill Universal Software is built from the ground-up for touch interaction and an intuitive user experience. Perform the test within 2 min after removal of the specimen from the water.
Bluehill LE for Basic Testing. As the test is run, the jaws move apart and the fabric tears along the pre-cut segment.
Competent statistical assistance is recommended for the investigation of bias. The valleys recorded between the peaks have no specific significance. The separation of the jaws is continuously increased to apply a force to propagate the tear. The valleys recorded between the peaks have no speci?