1 Scope
This Part of GB/T 3923 specifies a procedure to determine the maximum force and elongation at maximum force of textile fabrics using a strip method.
The method is mainly applicable to woven textile fabrics. It can be applicable to fabrics producedby other techniques. It is not normally applicable to woven elastic fabrics, geotextiles, nonwovens, coated fabrics, textile-glass woven fabrics and fabrics made from carbon fibres or polyolefin tape yarns.
The method specifies the determination of test specimens in equilibrium with the standard atmosphere for testing, and of test specimens in the wet state.
The method is restricted to the use of constant rate of extension (CRE) testing machines.
2 Normative References
The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
GB/T 6529 Textiles — Standard atmospheres for conditioning and testing (GB/T 6529-2008, ISO 139:2005, MOD)
GB/T 6682 Water for analytical laboratory use — Specification and test methods (GB/T 6682-2008, ISO 3696:1987, MOD)
GB/T 16825.1 Verification of static uniaxial testing machines — Part 1: Tension/compression testing machines — Verification and calibration of the force-measuring system (GB/T 16825.1-2008, ISO 7500-1:2004, IDT)
GB/T 19022 Measurement management systems — Requirements for measurement processes and measuring equipment (GB/T 19022-2003, ISO 10012:2003, IDT)
3 Terms and Definitions
For the purposes of this document, the following terms and definitions apply.
3.1
Constant-rate-of-extension (CRE) testing machine
Tensile-testing machine provided with one clamp which is stationary and another clamp which moves with a constant speed throughout the test, the entire testing system being virtually free from deflection.
