Texas CNG(Compressed Natural Gas) Driver Practice

What standard must fiber reinforced plastic and full composite cylinders comply with?

1. DOT 3AA standard

2. DOT FRP1 standard

3. DOT FRP2 standard

4. ASME Boiler Code

The correct answer is: DOT FRP1 standard

Fiber reinforced plastic (FRP) and full composite cylinders must comply with the DOT FRP1 standard. This standard specifically addresses the design, construction, and testing requirements for composite cylinders used to safely transport compressed natural gas and other materials. It outlines the specifications that ensure these cylinders can handle the high pressures and potential stresses encountered during transportation and usage, providing a framework that prioritizes safety and reliability. In contrast, the DOT 3AA standard pertains to the specifications for seamless steel cylinders, which are different from composite materials in both structure and intended usage. The DOT FRP2 standard governs specific aspects of fiber reinforced plastic cylinders but is not the primary standard for the type of composite cylinders mentioned in the question. The ASME Boiler Code applies to pressure vessels and boilers, which does not pertain to the specific requirements for the transportation of compressed natural gas in composite cylinders.