external corrosion control of Underground Storage Tank (UST) systems via cathodic protection ANSI Webstore Key Features of NACE SP0285 (formerly RP 0285) Comprehensive Scope
As the successor organization to NACE, the Association for Materials Protection and Performance sells the fully updated, authenticated PDF version of SP0285 directly on their official website. nace rp 0285 pdf verified
The standard (reissued as NACE SP0285 by the Association for Materials Protection and Performance - AMPP) is the foundational global framework for controlling external corrosion on Underground Storage Tank (UST) systems using cathodic protection (CP) . Originally published in 1985 by NACE International, this engineering standard provides the minimum technical criteria required to safeguard buried mild-steel tanks, piping, and electrical connectors from structural degradation. Relying on verified PDF copies of this standard ensures that compliance officers, asset owners, and field engineers avoid outdated revisions and dangerous installation errors. external corrosion control of Underground Storage Tank (UST)
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: Relying on verified PDF copies of this standard
The standard can only be applied correctly by a competent corrosion professional and must be used in its entirety, as using only specific sections can lead to misinterpretation. To maintain compliance, impressed current CP systems require inspection every 60 days. Furthermore, a full cathodic protection test must be conducted by a person with at least NACE CP Level 1 certification.
: Both existing bare/coated tanks and new coated tanks.