ISO 24999:2008
Current
The latest, up-to-date edition.
Flexible cellular polymeric materials — Determination of fatigue by a constant-strain procedure
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English
23-06-2008
ISO 24999:2008 specifies a method for determining the loss in thickness of flexible cellular materials when compressed repetitively to a fixed level of strain. It is particularly useful for quality control in the manufacture of flexible polymeric cellular materials.
Another procedure already exists as ISO 3385: this measures the fatigue characteristics of flexible polymeric cellular materials by constant-stress loading of the specimen rather than constant strain. It forms the basis of a material classification system in ISO 5999.
These two fatigue procedures are complementary to each other and can both be useful in the prediction of end-use performance.
The procedure and equipment used in this International Standard allow testing of a large number of test pieces at any one time, whereas ISO 3385 only allows testing of one test piece at a time under the compression device.
| DevelopmentNote |
Supersedes ISO/DIS 24999. (06/2008)
|
| DocumentType |
Standard
|
| Pages |
6
|
| ProductNote |
THIS STANDARD HAVE CORRECT VERSION FOR ENGLISH
|
| PublisherName |
International Organization for Standardization
|
| Status |
Current
|
| Standards | Relationship |
| NEN ISO 24999 : 2008 | Identical |
| ISO 1923:1981 | Cellular plastics and rubbers — Determination of linear dimensions |
| ISO 23529:2016 | Rubber — General procedures for preparing and conditioning test pieces for physical test methods |
| ISO 3385:2014 | Flexible cellular polymeric materials — Determination of fatigue by constant-load pounding |
| ISO 5999:2013 | Flexible cellular polymeric materials — Polyurethane foam for load-bearing applications excluding carpet underlay — Specification |
| ISO/TR 9272:2005 | Rubber and rubber products — Determination of precision for test method standards |
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