ASTM D2261 PDF
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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Within this limitation, this test method has no known bias. 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 with consideration to the known bias.
Current edition approved Feb. Onsite Training At Your Facility. The separation of the jaws is continuously increased to apply a force to propagate the tear.
Analysis of the data was conducted in accordance with Practices D and D and the adjunct Tex-Pac. The minimum tearing force, however, is indicated to awtm above the lowest valleys. 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 d22611 responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.
Take the specimens to be used for the measurement of machine direction with the longer dimension parallel to the cross-machine direction. When testing to this standard, it is important to consider data rate.
ASTM D Tearing Strength of Textile Fabrics – Instron
Subscribe to Instron News! The tearing force may increase to a simple maximum value, or may show several maxima and minima, as shown in Fig. The highest peaks astn to re?
B Refer to As a consequence, these test instruments may be used when agreed upon between the purchaser and the supplier. They are designed with standard and optional features that increase testing efficiency and improve the testing experience for the operator.
07[1].ASTM D()-tear_百度文库
NOTE 2—The tabulated values of the critical differences should be considered to be a general statement, particularly with respect to betweenlaboratory precision.
Two operators in each laboratory each tested eight specimens of each fabric using this test method. In spite of the empirical nature of the reported values, the values are considered to re? Competent statistical assistance is recommended for the investigation of bias. Bluehill LE for Basic Testing. 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.
Tear Strength of Fabrics – Tongue Tear (Single Rip)
One tongue is placed in the upper jaw and one tongue is placed in the lower jaw. How can we help you? Instructions are provided for testing specimens with or without wetting. 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. The three d2621 types were: WaveMatrix 2 for Dynamic Testing.
Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard. Describe the material or product sampled and the method of sampling used. Link to Active This link will always qstm to the current Active version of the standard.
ASTM D2261 Tearing Strength of Fabrics
The reported value obtained is not directly asm to the force required to initiate or start a tear. Users of this standard are expressly advised that determination of the validity of any such patent rights, and the risk of infringement of such rights, are entirely their own responsibility. Subscribe to Our Newsletters. There may be no overall correlation, however, between the results obtained with the CRT-type machine and the CRE-type machine.