ISO-24999 Flexible cellular polymeric materials - Determination of fatigue by a constant-strain procedure

ISO-24999 - 1ST EDITION REPRINT - CURRENT
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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.

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Document Number

ISO 24999:2008

Revision Level

1ST EDITION REPRINT

Status

Current

Publication Date

Sept. 15, 2008

Committee Number

ISO/TC 45/SC 4