Canned seafood (canned tuna, canned fish): HMTc Standard — page updateshttps://heavymetalcertified.com/standards/canned-seafoodPublished revisions of this Heavy Metal Certified page.Canned seafood (canned tuna, canned fish): HMTc Standardhttps://heavymetalcertified.com/standards/canned-seafoodhttps://heavymetalcertified.com/standards/canned-seafood#revision-2425bb1ac8a5a728Sun, 20 Sep 2026 07:39:04 GMTThe Heavy Metal Tested & Certified standard for canned seafood, canned tuna and canned fish, stated as consumed. The metal ceilings are the general-fish government floor; the tin ceiling reflects the strictest canned-fishery maximum, because tin migrates from the can. A species-identified canned product (for example canned salmon) additionally meets its species subcategory where stricter.