Historical Version s - view previous versions of standard. More D These four seam engineering variables contribute to a textile product being able to achieve the maximum sewn seam strength performance and structural integrity when cut pieces of fabric are joined together. For example: an inflatable restraint in an automobile. Once deployed, it must be replaced; it cannot be re-used.
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Historical Version s - view previous versions of standard. More D These four seam engineering variables contribute to a textile product being able to achieve the maximum sewn seam strength performance and structural integrity when cut pieces of fabric are joined together. For example: an inflatable restraint in an automobile.
Once deployed, it must be replaced; it cannot be re-used. Likewise, there are other textile structures, intended to be used multiple times, while also being subjected to various care and maintenance regimens. When the failure results in displacement of yarns, the textile product will need to be replaced.
Competent statistical assistance is recommended for the investigation of bias. As a minimum, the two parties should take a group of test specimens from the same lot of fabric to be evaluated, which utilize a like seam assembly or standard seam assembly. The test specimens should then be randomly assigned in equal numbers to each laboratory for testing. If a bias is found, either its cause must be determined and corrected, or the purchaser and supplier must agree to interpret future test results in light of the known bias.
Because sewn seam strength and sewn seam efficiency varies with each fabric, both of the standard seam assemblies, noted in Table 1 , should be used when comparing the seam strength of different fabrics. Table 1 lists the default seam assembly specifications to be used for fabrics made with fine, medium and heavy count yarns. If a determination cannot be made as to which seam is the best suited for a particular fabric, all should be evaluated.
The breaking force of the seam and fabric will permit estimation of seam efficiency. This test method can be used as an aid for estimating seam strength for any given fabric. See Practice D The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other.
Combining values from the two systems may result in non-conformance with the standard. 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.
Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard. Scope 1. Link to Active This link will always route to the current Active version of the standard.
ASTM D1683 Fabric Seam Strength Testing
Active view current version of standard. Other Historical Standards. More D Note 1—The grab test procedure in Test Method D shall be used to determine any characteristic in fabric that can affect the measurement of sewn seam strength. Note 2—This test method is used in conjunction with Test Method D , which is used to measure breaking force and elongation of textile fabrics. Sewn seams in woven fabrics can fail due to rupture, slippage, or any combination thereof. Rupture can be further categorized as failure or fabric, or sewing thread, or seam slippage.
ASTM D 1683 Tensile (Seam Strength)