Textiles - Seam tensile properties of fabrics and made-up textile articles - Part 2: Determination of maximum force to seam rupture using the grab method
1 Scope
This part of GB/T 13773 specifies a procedure to determine the seam maximum force of sewn seams when the force is applied perpendicularly to the seam. This part specifies the method known as the grab method.
The method is applicable to woven textile fabrics. It may be applicable to fabrics produced by 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 sewn fabrics may be obtained from previously sewn articles or may be prepared from fabric samples, according to the requirements for the products or as agreed by the parties interested in the results.
This method is applicable to straight seams only and not to curved seams.
The method is restricted to the use of constant rate of extension (CRE) testing machines.
2 Normative References
The following normative documents contain provisions which, through reference in this part of GB/T 13773, constitute provisions of this part. For dated reference, subsequent amendments to, or revisions of, any of these publications do not apply. However, all parties coming to an agreement according to this part are encouraged to study whether the latest editions of these documents are applicable. For undated references, the latest edition of the normative document referred to applies.
Contents
Foreword I
1 Scope
2 Normative References
3 Definitions
4. Principle
5 Sampling
6 Apparatus
7 Atmospheres for Conditioning and Testing
8 Preparation of Seams and of Test Specimens
9 Procedures
10 Calculation and Expression of Results
11 Test Report
