Hydrostatic testing for cylinders is due every how many years?

Hydrostatic testing for cylinders is due every how many years?

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

Answer: (C)

Periodic hydrostatic testing determines a cylinder’s ability to safely contain its service pressure by filling it with water, pressurizing it to a higher test level, and checking for leaks or any wall expansion beyond allowable limits. For SCBA cylinders, this requalification is required every five years. A successful test confirms the cylinder can be used for another cycle up to that five-year interval, balancing safety with practicality. Shorter intervals aren’t necessary for these cylinders, while longer ones could risk undetected degradation slipping by.

Periodic hydrostatic testing determines a cylinder’s ability to safely contain its service pressure by filling it with water, pressurizing it to a higher test level, and checking for leaks or any wall expansion beyond allowable limits. For SCBA cylinders, this requalification is required every five years. A successful test confirms the cylinder can be used for another cycle up to that five-year interval, balancing safety with practicality. Shorter intervals aren’t necessary for these cylinders, while longer ones could risk undetected degradation slipping by.