It defines voltage measurement standards, such as the widely used -850 mV potential relative to a copper/copper sulfate reference electrode, to confirm a tank is adequately protected. Operation & Maintenance:
In 2018, a midstream operator used an unverified 1996 version of RP0285 to design a tank farm CP system. They missed the updated requirement for permanent reference electrodes under each tank. After three years, multiple tanks showed insufficient polarization, leading to a $2.3 million emergency repair and an EPA enforcement action. nace rp 0285 pdf verified
List RP 0285 as a governing standard. Note the exact revision date (e.g., 2018 reaffirmation). Store the verified PDF in a read-only folder accessible to field technicians. It defines voltage measurement standards, such as the