Cannabis flower and dried herb — HMTc Standard — page updateshttps://heavymetalcertified.com/standards/cannabis-flowerPublished revisions of this Heavy Metal Certified page.Cannabis flower and dried herb — HMTc Standardhttps://heavymetalcertified.com/standards/cannabis-flowerhttps://heavymetalcertified.com/standards/cannabis-flower#revision-13488e7c0b233609Mon, 21 Sep 2026 04:04:58 GMTThe Heavy Metal Tested & Certified heavy-metal-safety standard for cannabis flower and dried herb (Cannabis, Hemp, and CBD Products), evaluated on the finished inhalable product as sold. Each limit is the strictest sovereign cannabis heavy-metal action level applicable to the inhalation route; total chromium is a screening ceiling with hexavalent chromium as the binding control, and inorganic arsenic, methylmercury and Cr(VI) are enforced by reflex speciation.