How often is the SCBA hydrostatically tested?

The correct answer is based on established safety regulations and industry practices regarding the maintenance and testing of self-contained breathing apparatus (SCBA) cylinders. SCBA tanks must undergo hydrostatic testing every five years to ensure they are maintained in a safe operating condition. This testing procedure evaluates the integrity of the cylinder by filling it with liquid and subjecting it to high pressure, which helps identify any potential weaknesses or defects that could lead to failure during use.

Regular hydrostatic testing is essential for maintaining firefighter safety, as it ensures the equipment that provides breathing support in hazardous environments is reliable and capable of withstanding the pressures associated with firefighting activities. This interval aligns with standards set by organizations such as the National Fire Protection Association (NFPA) and the Department of Transportation (DOT), which govern the safe use and maintenance of these critical life-saving devices.

The other intervals mentioned for hydrostatic testing—such as every 2 years, 3 years, or 10 years—do not conform to the standard practices outlined in safety regulations. Following these guidelines helps ensure all firefighting personnel can rely on their SCBA cylinders for optimal performance when faced with dangerous situations.