What type of tests are technology-based fire extinguisher systems required to undergo?

Technology-based fire extinguisher systems are required to undergo hydrostatic testing. This type of test is crucial because it assesses the structural integrity and pressure-retaining capabilities of the extinguisher. During hydrostatic testing, the extinguisher is filled with water and subjected to pressures that exceed normal operating levels to check for leaks, weaknesses, and overall safety. This ensures that the extinguisher can handle the pressure it's designed for during actual use in a fire emergency, thus ensuring reliability and effectiveness.

While visual inspections, field evaluations, and performance audits are also important aspects of fire extinguisher maintenance, they serve different purposes. Visual inspections primarily check for obvious signs of damage or obstructions, while field evaluations and performance audits are generally used to assess the operational effectiveness and compliance with specific standards. Hydrostatic testing is unique in its focus on integrity and safety under pressure, making it essential for technology-based fire extinguisher systems.