When are the two inspections required after a CNG or LPG torch operation conducted?

The correct answer is that inspections are required 30 minutes and 1 hour after a CNG or LPG torch operation. This timing is established to ensure that any potential issues that could arise from the operation, such as lingering gas leaks or flare problems, are promptly identified and addressed.

Conducting the first inspection 30 minutes after the operation allows for an immediate assessment of the area and equipment used, as any combustion or leaks would likely be detected in this time frame. The subsequent inspection after 1 hour ensures that the area remains safe and that there are no lingering or delayed issues following the initial operation. These intervals are critical for maintaining safety standards and preventing accidents or hazardous conditions following torch operations.