Where must the barometric pressure record be kept?

• A. In the goaf
• B. At the mine in a location easily accessible by each person responsible for inspecting the mine for gas accumulation and the effectiveness of the ventilation system
• C. In the weather station
• D. On a computer in the office only

Answer: (B)

Barometric pressure data is part of how a mine verifies and interprets gas readings and ventilation performance. It must be kept at the mine so that anyone responsible for inspecting the mine for gas accumulation and the ventilation system’s effectiveness can access it readily during inspections. This on-site accessibility lets inspectors promptly relate gas test results to the current atmospheric pressure, ensuring accurate assessment of gas movement and ventilation adequacy. Storing it in the goaf would place it in a hazardous area, while relying on a weather station or keeping it only on a computer in the office could limit timely access and redundancy. So, keeping the record at the mine in a location easily accessible to those responsible for inspections is the correct practice.