: Other metallic parts of the storage system that require protection. Key Technical Sections
Purchasing or downloading an officially verified standard from the ANSI Webstore or the Accuris Standards Store ensures you are not using outdated, superseded text that could invalidate your regulatory compliance audits. Core Technical Criteria for Cathodic Protection
must be measured between the tank structure and a stable copper-copper sulfate reference electrode (CSE) contacting the soil. To eliminate errors caused by voltage drops ( IRcap I cap R
This standard provides the industry's minimum requirements for preventing external corrosion on buried or submerged metallic UST systems. It is specifically designed for systems containing oil, gas, or water and addresses the following components: nace rp 0285 pdf verified
Corrosion is the primary threat to the structural integrity of Underground Storage Tank (UST) systems. When steel tanks and piping corrode, they risk leaking hazardous substances into the soil and groundwater. To mitigate this risk, the National Association of Corrosion Engineers (NACE)—now part of AMPP (Association for Materials Protection and Performance)—developed the Recommended Practice .
NACE RP0285 does not exist in isolation. It is part of a comprehensive suite of corrosion control standards. For professionals in the field, familiarity with related documents is essential.
Outlines soil resistivity testing, pH evaluation, and moisture analysis to determine if a bare steel asset requires an immediate CP retrofit. : Other metallic parts of the storage system
Updated standard reflecting modern materials and techniques.
NACE International (now part of AMPP) holds copyright on this standard. "Verified" usually means confirming the document is the official, unaltered final version from NACE/AMPP. Free public PDFs circulating on personal or document-sharing sites are often unverified, outdated, or unauthorized copies.
The standard is a critical guideline for the control of external corrosion on metallic Underground Storage Tank (UST) systems through cathodic protection (CP) . While originally published as a "Recommended Practice" (RP), it has since been updated and redesignated as NACE SP0285 , with the most current active version being the 2021 reaffirmation. Core Purpose and Scope To eliminate errors caused by voltage drops (
These utilize highly active metals like magnesium or zinc connected directly to the tank. The anode corrodes sacrificially to protect the steel structure. This is ideal for smaller, well-coated tanks in low-resistivity soil.
Following the merger of NACE and SSPC into AMPP , the standard was reaffirmed as SP 0285-2021 . 🛠️ Key Technical Focus