NFPA 25, Standard for the Inspection, Testing, and Maintenance of Water-Based Fire Protection Systems
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NFPA 25, Standard for the Inspection, Testing, and Maintenance of Water-Based Fire Protection SystemsThe 2026 edition introduces several significant updates aimed at improving fire safety performance, system reliability, and inspection standards. These revisions reflect advances in fire protection technology and lessons learned from field experience.Key updates include a new requirement for sprinklers installed in dwelling units for more than 50 years. These sprinklers must now be replaced with new fast-response sprinklers or successfully pass a thermal sensitivity performance test to remain in service.The edition also includes revised limits on permissible antifreeze mixtures, ensuring safer system operation and reducing fire risk associated with improper concentrations.Additionally, new Inspection, Testing, and Maintenance (ITM) requirements have been introduced in Chapter 13, providing clearer guidance for ongoing system compliance.
