A cylinder documentation line reads: 3AL3000 4^17. Which of the following is true?

The documentation line "3AL3000 4^17" indicates that the tank is designed to have a rated working pressure of 3000 psi. The number "3000" directly specifies the maximum pressure that can be safely stored in the cylinder under normal operating conditions. This standard is important for ensuring safety when using the tank for compressed gas storage or diving applications, as exceeding this pressure can lead to dangerous situations, including tank failure.

While there are other elements in the marking that relate to the material and inspection date, the figure "3000" is unequivocally linked to the tank's rated working pressure, making this choice accurate in identifying the tank's capabilities in terms of pressure handling. Understanding these specifications is crucial for safe diving operations and compliance with diving equipment standards.