ASTM D4964
Standard Test Method for Tension and Elongation of Elastic Fabrics (Constant-Rate-of-Extension Type Tensile Testing Machine)
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About This Item
ASTM D4964 is the standard for testing the tension and elongation of elastic fabrics using a constant-rate-of-extension tensile testing machine. It is designed to help characterize how elastic materials respond when pulled under controlled conditions, which is important for evaluating stretch performance and consistency. For manufacturers, labs, and buyers working with elastic textiles, this standard provides a common technical basis for comparing test results and supporting product quality decisions.
Purpose of ASTM D4964
The purpose of ASTM D4964 is to define a consistent test method for measuring the tensile behavior of elastic fabrics, including both tension and elongation, with a constant-rate-of-extension type machine. By using a standardized approach, the method helps reduce variability in test outcomes and supports more reliable comparison between materials, lots, or suppliers. ASTM D4964 is commonly used when a product’s stretch response must be measured in a controlled and repeatable way.
Common use cases of ASTM D4964
This standard is commonly used in textile testing environments where elastic fabrics need to be evaluated for stretch characteristics before production release or product qualification. It may be applied in quality control, incoming inspection, research and development, and supplier testing programs. ASTM D4964 is especially relevant for materials that depend on controlled extension performance, where consistent measurement of tensile response can help support fit, comfort, and functional expectations.
Why ASTM D4964 matters
ASTM D4964 matters because elastic fabrics can behave differently depending on construction, formulation, and processing, and a standardized test method helps make those differences measurable. Using a recognized method supports compliance efforts, purchasing decisions, and product evaluation by giving stakeholders a shared reference for tension and elongation data. ASTM D4964 also helps reduce risk when performance consistency is important, since comparable test results are easier to review and act on.
- Constant-rate-of-extension tensile testing
- Tension and elongation measurement
- Elastic fabric performance evaluation
- Quality control and lab comparison
- Standardized test reporting
- Publication Date: 2020-08-06
- Publisher: ASTM
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