Which equipment types are covered by the calibration requirement for hose pressure testing?

• A. Hose Testing Machine Only
• B. Portable Pump Only
• C. Fire Department Pumper With Gauges Only
• D. All Of The Above

Answer: (D)

Calibration of pressure-reading equipment used in hose pressure testing applies to every device that can influence the test pressure. This means the gauges and controls on a hose pressure testing machine, the gauges on a portable pump used to generate the test pressure, and the gauges on a fire department pumper when it serves as the pressure source must be calibrated. Accurate readings ensure the test pressure is correct, preventing under- or over-pressurization that could hide leaks or cause hose failure and safety issues. Because any of these devices can affect the test result, the calibration requirement covers all of the above.