Polychlorinated biphenyls (PCBs) were once a commonly used liquid in transformers and other electrical equipment for its cooling and fire retardant characteristics. After years of use, the liquid was banned in 1979 due to studies that showed it caused multiple forms of cancer in lab animals, and a link was discovered between exposure to PCBs and non-Hodgkin Lymphoma. 40 CFR, part 761 requires the use of PCB labels on the access to the transformer as well as the transformer itself.
Although PCBs are no longer manufactured in the U.S., they still exist in products and materials produced before 1979. For this reason, SafetySign.com offers PCB labels for all PCB contaminated equipment, as well as a label for certified non-PCB dielectric fluid. Place an order for your PCB labels today.