When should fire extinguishers be tested, according to the NFPA?

The correct choice regarding the testing of fire extinguishers according to the National Fire Protection Association (NFPA) standards is based on specific guidelines for maintenance and inspection. NFPA 10, which provides the standard for portable fire extinguishers, outlines that fire extinguishers should undergo hydrostatic testing every 12 years for certain types of extinguishers. This testing ensures the integrity and functionality of the extinguisher under pressure, which is crucial for its effectiveness in an emergency.

Regular inspections are required annually, and some extinguishers may need more frequent checks depending on specific use cases and local regulations. However, the significance of the 12-year hydrostatic testing interval is that it serves as a benchmark for maintaining the safety and performance of fire extinguishers over time. This ensures that they remain reliable and ready for use when needed.