According to West Virginia state law, when must the LTX 310 oxygen level be calibrated?

The correct answer indicates that the LTX 310 oxygen level must be calibrated every 30 days according to West Virginia state law. Calibration is essential for ensuring accuracy and reliability; regular calibration checks help identify any drift in the measurement accuracy of the device, thereby maintaining safety in environments where accurate oxygen levels are critical. By adhering to this 30-day calibration schedule, operators can minimize risks associated with low or high oxygen concentrations, which is particularly important in work settings such as confined spaces or other environments where oxygen levels may fluctuate. Regular calibration reinforces compliance with safety standards and promotes a culture of safety within the workplace.