Home Peroxide-forming Chemicals Peroxide-forming Chemical Label Peroxide-forming Chemical Label Explore This Section Peroxide-forming Chemicals Peroxide Formation Peroxide-forming Chemical Disposal Peroxide-forming Chemical Label Peroxide-forming Chemicals Management Peroxide-forming Chemical Storage Testing for Peroxides All PFCs should be labeled upon arrival to the laboratory Complete all fields on the PFC label:Date receivedDate openedUninhibited vs. inhibitedPFC ClassExpiration/disposal date Email EH&S to request PFC labels Document testing detailsWhen testing occurs, document the date, results, and initials of the tester on the label.