How often must a cylinder undergo hydrostatic testing?

How often must a cylinder undergo hydrostatic testing?

• A. 2 yrs
• B. 5 yrs
• C. 10 yrs
• D. 15 yrs

Answer: (B)

High-pressure SCBA cylinders are hydrostatically tested to confirm they can safely withstand pressures beyond normal use and to detect hidden flaws in the wall. The test fills the cylinder with water and subjects it to a prescribed test pressure well above the service pressure—typically about 1.5 times the service pressure—and holds it long enough to reveal leaks, deformation, or failure. For standard SCBA cylinders, this hydrostatic test is required every five years. If the cylinder passes, it receives a new test date; if it fails, it must be removed from service and replaced.

High-pressure SCBA cylinders are hydrostatically tested to confirm they can safely withstand pressures beyond normal use and to detect hidden flaws in the wall. The test fills the cylinder with water and subjects it to a prescribed test pressure well above the service pressure—typically about 1.5 times the service pressure—and holds it long enough to reveal leaks, deformation, or failure. For standard SCBA cylinders, this hydrostatic test is required every five years. If the cylinder passes, it receives a new test date; if it fails, it must be removed from service and replaced.