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Homepage>ASTM Standards>ASTM F3268-18A - Standard Guide for <emph type="bdit">in vitro</emph> Degradation Testing of Absorbable Metals
Released: 2018-11-13

ASTM F3268-18A

Standard Guide for <emph type="bdit">in vitro</emph> Degradation Testing of Absorbable Metals

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Standards number:ASTM F3268-18A
Standard number:F3268-18A
Keywords:absorbable; absorption; bioabsorbable; biodegradable; corrosion; degradation;

1.1 The purpose of this standard is to outline appropriate experimental approaches for conducting an initial evaluation of the in vitro degradation properties of a device or test sample fabricated from an absorbable metal or alloy.

1.2 The described experimental approaches are intended to control the corrosion test environment through standardization of conditions and utilization of physiologically relevant electrolyte fluids. Evaluation of a standardized degradation control material is also incorporated to facilitate comparison and normalization of results across laboratories.

1.3 The obtained test results may be used to screen materials and/or constructs prior to evaluation of a more refined fabricated device. The described tests may also be utilized to define a device’s performance threshold prior to more extensive in vitro performance evaluations (e.g. fatigue testing) or in vivo evaluations.

1.4 This standard is considered to be applicable to all absorbable metals, including magnesium, iron, and zinc-based metals and alloys.

1.5 The described tests are not considered to be representative of in vivo conditions and could potentially provide a more rapid or slower degradation rate than an absorbable metal’s actual in vivo corrosion rate. The herein described test methods are to be used for material comparison purposes only and are not to act as either a predictor or substitute for evaluation of the in vivo degradation properties of a device.

1.6 This standard only provides guidance regarding the in vitro degradation of absorbable metals and does not address any aspect regarding either in vivo or biocompatibility evaluations.

1.7 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.

1.8 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.