1.1 Metallic implant systems can be subject to corrosion, fretting corrosion, and wear. For some in vitro tests, it may be useful to try to characterize the amount of material that is lost from implant surfaces during the test. Sometimes weighing the materials before and after the test will be sufficient. However, in other cases, it may be easier to try to quantify the amount of material lost by making measurements on the corrosion products themselves. 1.2 It may be possible to use some aspects of the guide in simulator wear testing. However, in simulator wear testing, the problem is much more complicated because of the presence of serum lubricant and antibacterial compounds. 1.3 This guide is intended to promote investigation of possible methods for measuring and quantifying the amount of corrosion products that result from some tests. 1.4 The values stated in SI units are to be regarded as the standard. 1.5 This 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.
Corrosion products or particulates generated by surfaces of metallic implants particularly contacting surfaces of modular metallic implants may cause undesirable responses in the human body. These responses can vary with the quantity of material that is released into the body. There is currently no standard for collecting those corrosion-related ionic and particle-based debris. This guide will promote and guide the development of standardized methods for collecting and quantifying such released material.
Keywordscorrosion; fretting corrosion; implants; environmental testing; product testing; metallic
The title and scope are in draft form and are under development within this ASTM Committee.Back to Top
Item Going To Next Ballot Level