The American Herbal Products Association (AHPA) has released a new document that compares multiple standards for heavy metals and organometallic impurities in finished products, providing clearer context and source identification for members of the herbal products community as they make manufacturing process decisions. The document includes values from the nonbinding AHPA guidance policy, NSF/ANSI, and USP standards, as well as California Proposition 65, Canadian and EU regulatory limits. AHPA notes that the cited standards routinely include other provisions, as well as additional elemental subgroup, age or commodity-specific limits. Users are encouraged to consult the details of the cited source before attempting to use any of the listed limits.
The comparison document can be accessed here.
