BS ISO 18489:2015:2018 Edition
$102.76
Polyethylene (PE) materials for piping systems. Determination of resistance to slow crack growth under cyclic loading. Cracked Round Bar test method
| Published By | Publication Date | Number of Pages |
| BSI | 2018 | 20 |
This International Standard specifies a method to determine the resistance to slow crack growth (SCG) of polyethylene materials, pipes, and fittings. The test is applicable to samples taken from compression moulded sheet or extruded pipes and injection moulded fittings of suitable thickness.
This International Standard provides a method that is suitable for an accelerated fracture-mechanics characterization at ambient temperatures of 23 °C of different polyethylene grades, especially for PE 80 and PE 100 types for pipe applications.
NOTE This test method could be adapted for other thermoplastics materials by developing the procedure using different test parameters.
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 2 | National foreword |
| 6 | Foreword |
| 7 | Introduction |
| 9 | 1 Scope 2 Normative references 3 Terms and definitions |
| 11 | 4 Principle 5 Apparatus 5.1 Test machine 5.1.1 Loading system |
| 12 | 5.1.2 Load-cycle frequency 5.1.3 Grips 5.1.4 Temperature chamber 5.2 Microscope 5.3 Notching apparatus 6 Test specimen 6.1 Specimen geometry and dimensions |
| 13 | 6.2 Test specimen preparation 6.3 Specimen notching 6.4 Specimen conditioning |
| 14 | 7 Test procedure 7.1 Measurement of specimen dimensions 7.2 Specimen mounting 7.3 Test atmosphere 7.4 Calculation of test load |
| 15 | 7.5 Load application 7.6 Notch depth measurement 8 Data treatment |
| 17 | 9 Test report |
| 18 | Annex A (informative) Comparison of different test specimen diameters |
| 19 | Bibliography |
