These test methods cover the tensile testing of aramid threads, twisted cables from these yarns and fabrics from these cables. The yarn or cord can be wound on cones, tubes, coils, chokes, or beams; It can be woven into fabric; or they can be realized in some other form. The methods include test procedures and include no specifications or tolerances.
The age and history of the sample and the specific conditions used during testing, influence levels of tensile properties obtained during testing of aramid yarns and cordes. Among these conditions are very important: elongation rate, type of clamps, gauge length of the specimen, the temperature and the humidity of the atmosphere, air flow rate through the specimen, and the temperature and moisture content of the specimen. Conditions accordingly trial are specified precisely to obtain reproducible test results on a specific sample.
|Test Standard||ASTM D 7269 / no ISO equivalent|
|Temperature Range||da -150 °C a 316 °C|
|Specimen Thickness||See Designation D 7269|
|Specimen Width||See Designation D 7269|
|Specimen Length||See Designation D 7269|
- D76 Specification for Tensile Testing Machines for Textiles
- D123 Terminology Relating to Textiles
- D1776 Practice for Conditioning and Testing Textiles
- D1907 Test Method for Linear Density of Yarn (Yarn Number) by the Skein Method
- D1909 Standard Table of Commercial Moisture Regains for Textile Fibers
- D2258 Practice for Sampling Yarn for Testing
- D4848 Terminology Related to Force, Deformation and Related Properties of Textiles
- D6587 Test Method for Yarn Number Using Automatic Tester