The ASTM D3107 test covers the determination of fabric stretch amount, fabric growth and fabric recovery of fabrics partially or fully woven from stretch yarns after a certain tension and extension.
These test methods are used to determine the stretch, growth and recovery properties that garments made with the fabric tested can be expected to exhibit during use. These test methods are not recommended for acceptance testing of commercial shipments, as the inter-laboratory sensitivity is known to be poor.
These test methods are designed for use with woven fabrics that exhibit good recovery properties from high stretch (greater than 12 percent) and low tension (fabric width up to 360 g/cm or 2 lb/in). When agreed, these test methods can be used for fabrics partially or wholly woven from non-stretch yarns that show limits within the stretch properties shown above.
These test methods allow the use of two tension options commonly used in the textile industry; 1,35 kg (3 lb.) and 1,8 kg (4 lb.). Various calculations for fabric stretch, fabric growth, and fabric recovery are included, and individual specifications can be used individually as needed.
These test methods should not be used to measure the elongation at break of woven fabrics covered by Test Method D 5035.
If there are differences of practical importance between test results reported for two or more laboratories, comparative testing should be performed by those laboratories, using competent statistical assistance, to determine whether there is a statistical bias between them. Use test samples that are as homogeneous as possible, drawn from material from which different test results are obtained, and randomly assigned to each laboratory in equal numbers for testing. Test results from the two laboratories should be compared using a statistical test for mismatched data at a probability level chosen prior to the test series. If a bias is found, the cause should be found and corrected, or future test results for this material should be adjusted with known bias in mind.
Some stretch fabrics are built with stretch yarns in the fill direction only. As a result, only the fill direction needs to be tested for these fabrics.
Values stated in SI units or inch-pound units should be considered separately as standard. In the text, inch-pound units are shown in parentheses. The values specified in each system are not exactly equivalent; therefore, each system will be used independently of the other system. Combining values from the two systems may result in non-compliance with the specification.
This standard does not require to address all security concerns, if any, associated with its use. It is the responsibility of the user of this standard to determine appropriate safety and health practices prior to use and to determine the applicability of regulatory restrictions.
Our organization also provides testing services to businesses within the scope of ASTM D3107 Standard Test Methods for Stretch Properties of Fabrics Woven from Stretch Yarns within the framework of laboratory testing services.
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