How frequently can cylinders complying with 49 CFR 180.2098(b) be hydro tested?

Cylinders that comply with 49 CFR 180.2098(b) can undergo hydrostatic testing every 10 years. This regulation specifically outlines the requirements for periodic testing of cylinders used in the transportation of hazardous materials to ensure their integrity and safety.

Hydrotesting is a critical safety measure that involves filling the cylinder with water and pressurizing it to check for leaks and ensure structural integrity. The ten-year interval is established as a standard to strike a balance between safety and practicality, allowing sufficient time between tests for cylinders that are maintained properly. Using this timeline helps the industry maintain compliance with federal regulations while also ensuring that the cylinders remain safe for storage and transportation of hazardous materials.

Options suggesting more frequent testing intervals, such as annually or every five years, do not align with the regulatory standards unless specific circumstances apply, which are not indicated here. Therefore, the correct frequency per the regulation for these specific cylinders is indeed every 10 years.