ASTM F746-04 Standard Test Method for Pitting or Crack Corrosion of Metallic Surgical Implant Materials

This standard covers the determination of the resistance to pitting or crevice corrosion of metals and alloys from which surgical implants will be produced. It is a modified version of an established test 2 and is used as a screening test to rank surgical implant alloys according to their resistance to local corrosion.

This standard applies only to passive metals and alloys. Non-passive alloys (other than noble alloys) are susceptible to general corrosion and are not normally suitable for implant use. It is intended for use as a laboratory screening test for metals and alloys subject to pitting or crevice corrosion, or both.

Values ​​stated in SI units or inch-pound units will be considered standard separately. The values ​​specified in each system may not be exactly equivalent; therefore, each system should be used independently of the other. Combining values ​​from the two systems may result in non-compliance with the standard.

This standard does not purport to address all, if any, safety concerns associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health and environmental practices and to determine the applicability of regulatory restrictions prior to use.

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