The American Society for Testing and Materials (ASTM) is an organization that has industry specific committees to create standards for everything from toilets to hip replacements.

For the purposes of body jewelry we're interested in their standards for materials for human implant. Body jewelry should meet ASTM standards for human implant (such as ASTM F136 for titanium) so we can be sure the jewelry won't harm your piercing or body in the short or long term. Other jewelry should be treated as novelty pieces and only be worn for short periods at your own risk.

You can read more about the ASTM in our information section.