How long must records of trip times be kept after the next test?

The requirement to retain records of trip times for a specified duration is significant for ensuring compliance with inspections, testing, and maintenance standards of water-based fire protection systems. Keeping these records provides a detailed history that can be useful for future inspections and performance assessments.

In this context, retaining trip time records for one year after the next test aligns with industry standards, as it allows enough time for review and analysis of system performances while ensuring accountability. This timeframe aids in tracking the reliability and operational readiness of the fire protection systems, which is vital for ensuring safety and adhering to code requirements.

Although other timeframes could be mentioned, one year serves as a practical compromise between thoroughness and manageability in recordkeeping practices for these critical systems.