BS ISO 2321:2017
$167.15
Rubber threads. Methods of test
| Published By | Publication Date | Number of Pages |
| BSI | 2017 | 40 |
This International Standard specifies methods of test for determining general physical and mechanical properties of rubber threads, as well as specific mechanical properties of such threads in contact with fabrics. Owing to the comparatively small cross-section and the unusual conditions of service of this material, certain special methods have been developed.
Some of the tests included in this International Standard may not be entirely suitable for threads made from certain synthetic rubbers (e.g. urethane rubber). These tests are intended for natural or synthetic polyisoprene rubbers.
It is pointed out that comparisons may only be made on new rubber threads or on those with identical processing histories. In the interpretation of results from threads which have been subjected to spooling, fabrication or any other process, it should be borne in mind that the previous history is important, and what is known of this and of any relaxation treatments used shall be stated in the test report.
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 2 | National foreword |
| 8 | Foreword |
| 9 | 1 Scope 2 Normative references 3 Terms and definitions |
| 11 | 4 Conditioning of samples or test pieces 5 Count 5.1 Sectional count |
| 12 | 5.2 Conventional count (size number) 5.3 Apparatus |
| 13 | 5.4 Procedure 5.4.1 Cutting out the test pieces |
| 14 | 5.4.2 Weighing the test pieces 5.5 Expression of results 6 Metric yield 6.1 Procedure |
| 15 | 6.2 Expression of results 7 Properties of rubber threads 8 Density 8.1 Principle |
| 16 | 8.2 Method 8.2.1 Method A 8.2.2 Method B 9 Tensile strength, modulus and elongation at break 9.1 Apparatus |
| 17 | 9.2 Procedure 9.2.1 Test piece preparation 9.2.2 Loop formation and testing |
| 18 | 9.3 Expression of results 10 Schwartz value (SV) 10.1 Apparatus 10.2 Procedure |
| 19 | 10.3 Expression of results 11 Elongation under a specified load 11.1 Test pieces 11.2 Apparatus |
| 20 | 11.3 Procedure 11.4 Expression of results |
| 21 | 12 Stress retention 12.1 Test pieces 12.2 Apparatus 12.3 Procedure |
| 22 | 12.4 Expression of results 12.5 Test report 13 Tension set 13.1 Test piece preparation |
| 23 | 13.2 Apparatus 13.3 Procedure 13.4 Expression of results |
| 24 | 14 Accelerated ageing test on rubber threads in a relaxed state 14.1 General 14.2 Principle 14.3 Test pieces 14.4 Apparatus 14.5 Procedure 14.6 Expression of results |
| 25 | 15 Dry-heat resistance 15.1 General 15.2 Principle 15.3 Apparatus |
| 26 | 15.4 Procedure 15.5 Expression of results 15.6 Test report |
| 27 | 16 Ribbons: Degree of adhesion between threads 16.1 General 16.2 Principle 16.3 Apparatus 16.4 Test pieces 16.5 Procedure |
| 28 | 16.6 Expression of results 16.7 Test report 17 Resistance to copper staining during laundering 17.1 General |
| 29 | 17.2 Principle 17.3 Reagents 17.4 Apparatus and materials |
| 30 | 17.5 Test pieces 17.6 Preparation of test pieces 17.6.1 General 17.6.2 Individual samples of textile fabric 17.6.3 Individual textile yarns 17.6.4 Multifibre fabric swatches 17.7 Procedure |
| 31 | 17.8 Test report 18 Effect of washing 18.1 General 18.2 Principle 18.3 Apparatus |
| 32 | 18.4 Standard washing solution 18.5 Procedure |
| 33 | 18.6 Expression of results 18.7 Test report 19 Resistance to atmospheric fume staining 19.1 General |
| 34 | 19.2 Principle 19.2.1 General 19.2.2 Method A 19.2.3 Method B 19.3 Reagents 19.4 Apparatus and materials 19.4.1 Method A 19.4.2 Method B |
| 36 | 19.5 Test pieces 19.5.1 General 19.5.2 Method A 19.5.3 Method B 19.6 Procedure 19.6.1 Method A 19.6.2 Method B |
| 37 | 19.7 Test report |
| 38 | Bibliography |
