BS ISO 23228:2011
Current
The latest, up-to-date edition.
Thermoplastics pipes for the conveyance of fluids. Determination of the stress-rupture resistance of moulding materials using plain strain grooved tensile (PSGT) specimens
Hardcopy , PDF
English
31-10-2011
Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Principle
5 Apparatus
6 Test specimen
7 Conditioning
8 Procedure
9 Calculation
10 Test report
Annex A (informative) - Determination of specimen
dimensions for the plane strain condition
Bibliography
Describes a method for the determination of the time-to-failure of thermoplastics resins and compounds for piping and fitting applications by the use of a plane strain grooved tensile specimen in a stress-rupture test.
| Committee |
PRI/88
|
| DevelopmentNote |
Supersedes 09/30154552 DC. (10/2011)
|
| DocumentType |
Standard
|
| Pages |
20
|
| PublisherName |
British Standards Institution
|
| Status |
Current
|
| Supersedes |
This International Standard specifies a method for the determination of the time-to-failure of thermoplastics resins and compounds for piping and fitting applications by the use of a plane strain grooved tensile specimen in a stress-rupture test.
The grooved tensile specimen produces a biaxial state of stress on uni-axial loading, which is taken to be indicative of the stress conditions found in pressurized solid-wall plastics pipes. The ratio of the stress in the axial direction to the transverse direction approximates that for a pressurized end-capped solid-wall pipe specimen[4]–[7].
It is intended that the data generated on these specimens be utilized to determine the stress-rupture (time to failure) resistance of moulding materials for pipes and fittings as well as experimental piping resins.
This method is also applicable to stress-rupture evaluations of pipes which are difficult to test, e.g. larger diameter pipes, including their batch release tests.
This International Standard is not intended to replace the stress-rupture test of ISO1167[2], which uses internally pressurized end-capped pipes.
| Standards | Relationship |
| ISO 23228:2011 | Identical |
| ISO 9080:2012 | Plastics piping and ducting systems — Determination of the long-term hydrostatic strength of thermoplastics materials in pipe form by extrapolation |
| ISO 3126:2005 | Plastics piping systems — Plastics components — Determination of dimensions |
| ISO 899-1:2017 | Plastics — Determination of creep behaviour — Part 1: Tensile creep |
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