ASTM F 2214 : 2016 : REDLINE
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
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Standard Test Method for In Situ Determination of Network Parameters of Crosslinked Ultra High Molecular Weight Polyethylene (UHMWPE)
10-21-2023
English
10-24-2016
Important note : All end users must be registered with an Account prior to user licenses being assigned.CONTAINED IN VOL. 13.01, 2016 Specifies how the crosslink density, molecular weight between crosslinks, and number of repeat units between crosslinks in ultra-high molecular weight polyethylene (UHMWPE) crosslinked by ionizing radiation or by chemical means can be determined by measuring the swelling ratio of samples immersed in o-xylene.
| Committee |
F 04
|
| DocumentType |
Redline
|
| Pages |
5
|
| PublisherName |
American Society for Testing and Materials
|
| Status |
Superseded
|
| SupersededBy |
1.1This test method describes how the crosslink density, molecular weight between crosslinks, and number of repeat units between crosslinks in ultra-high molecular weight polyethylene (UHMWPE) crosslinked by ionizing radiation or by chemical means can be determined by measuring the swelling ratio of samples immersed in o-xylene. Examples of experimental techniques used to make these measurements are discussed herein.
1.2The test method reported here measures the change in height of a sample specimen while it is immersed in the solvent. Volumetric swell ratios assume that the sample is crosslinked isotropically, and that the change in dimension will be uniform in all directions. This technique avoids uncertainty induced by solvent evaporation or temperature change.
1.3The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.
1.4This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.
| ASTM F 2900 : 2011 | Standard Guide for Characterization of Hydrogels used in Regenerative Medicine (Withdrawn 2020) |
| ASTM F 2565 : 2013 : REDLINE | Standard Guide for Extensively Irradiation-Crosslinked Ultra-High Molecular Weight Polyethylene Fabricated Forms for Surgical Implant Applications |
| ASTM F 2759 : 2011 : REDLINE | Standard Guide for Assessment of the Ultra High Molecular Weight Polyethylene (UHMWPE) Used in Orthopedic and Spinal Devices |
| ASTM F 561 : 2013 | Standard Practice for Retrieval and Analysis of Medical Devices, and Associated Tissues and Fluids |
| ASTM D 2765 : 2016 : REDLINE | Standard Test Methods for Determination of Gel Content and Swell Ratio of Crosslinked Ethylene Plastics |
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