The coating must resist corrosion even when submerged in water, which often happens in CUI scenarios (below dew point).
NACE SP0198 (latest version SP0198-2017) is an industry-standard "systems approach" to mitigating Corrosion Under Thermal Insulation (CUI) and fireproofing materials in oil, gas, and chemical industries. It provides comprehensive guidelines for protecting carbon and stainless steels between -12 °C and 177 °C (10 °F to 350 °F) by focusing on coating systems, insulation design, and moisture prevention. For detailed technical specifications, visit the ANSI Webstore . nace sp0198 pdf
It was created to provide a structured, comprehensive approach to preventing and managing CUI by incorporating insights from coating specialists, insulation manufacturers, mechanical designers, and inspectors. Why "Systems Approach"? The coating must resist corrosion even when submerged
NACE (AMPP) offers a specifically based on SP0198. Use the PDF as a training manual. NACE (AMPP) offers a specifically based on SP0198
You may also hear this referred to as (RP = Recommended Practice). In 2004, NACE changed its nomenclature from "RP" to "SP" (Standard Practice). Therefore, RP0198 and SP0198 refer to the same document, but SP0198 is the current designation.