The standard focuses on systems (up to 50°C/120°F) and covers several critical areas for engineers and maintenance teams:
This is the section most often cited in failure analysis. NACE RP 0391 explicitly prohibits: nace rp 0391 pdf
NACE RP0391-91 (1991) was updated in 2001. In February 2017, the standard was redesignated as . The standard focuses on systems (up to 50°C/120°F)