Which standard is commonly related to sprinkler installation and design?

The correct choice is NFPA 25 because it specifically addresses the inspection, testing, and maintenance of water-based fire protection systems, including fire sprinkler systems. This standard ensures that sprinklers are functioning properly and remain in good working order over time, which is crucial for effective fire protection. By following NFPA 25, sprinkler fitters can ensure that the systems they install and maintain provide optimal performance and reliability when needed.

While other NFPA standards mentioned have relevance to fire protection and safety, they focus on different aspects. NFPA 80 deals with fire doors and other opening protectives, NFPA 5000 outlines building construction and safety, and NFPA 14 provides guidelines for standpipe and hose systems rather than sprinkler systems specifically. Thus, NFPA 25 is uniquely suited to the ongoing care and effectiveness of sprinkler systems in fire protection.