Testing, Disclosure, and Packaging Rules Beyond Concentration Limits — page updateshttps://heavymetalcertified.com/articles/testing-disclosure-packaging-rulesPublished revisions of this Heavy Metal Certified page.Testing, Disclosure, and Packaging Rules Beyond Concentration Limitshttps://heavymetalcertified.com/articles/testing-disclosure-packaging-ruleshttps://heavymetalcertified.com/articles/testing-disclosure-packaging-rules#revision-cb4c6260cc80ae36Fri, 02 Oct 2026 21:00:41 GMTHeavy-metal compliance now includes testing methods, QR disclosures, water inventories, packaging composition, formulation and product restrictions.