Which of the following is NOT part of NFPA 13E's approach to corrosion prevention?

• A. Inspections
• B. Corrosion assessment
• C. Repairs or replacements as needed
• D. Painting or cosmetic finishing on all piping

Answer: (D)

NFPA 13E’s approach to corrosion prevention is a practical, condition-based program. It starts with regular inspections to identify signs of corrosion, then uses a corrosion assessment to determine the severity and risk to system performance. Actions are taken based on that assessment, typically repairs or replacements as needed to maintain the reliability of the sprinkler system. Painting or cosmetic finishing on all piping isn’t part of this corrosion-prevention sequence because it doesn’t address the actual condition or risk, and can even mask underlying corrosion. Selective protective coatings may be used where appropriate, but the standard emphasizes inspection, assessment, and corrective actions rather than blanket cosmetic painting.