MINE VENTILATION DILUTION CHECKLIST

Created by ChecklistGuro (https://checklistguro.com)

--- PRE-SHIFT VENTILATION CHECKS ---
[ ] Shift Start Time
[ ] Ventilation System Status (Pre-Shift) (Normal, Reduced, Standby, Faulted)
[ ] Pre-Shift Ventilation Fan RPM (Fan 1)
[ ] Pre-Shift Ventilation Fan RPM (Fan 2 - if applicable)
[ ] Emergency Ventilation System Availability (Available, Unavailable, Testing)
[ ] Notes on Pre-Shift Ventilation Condition

--- AIRFLOW MEASUREMENT ---
[ ] Airflow Rate (m³/s)
[ ] Airflow Rate (CFM)
[ ] Measurement Location (GPS Coordinates)
[ ] Measurement Device Used (Anemometer, Pitot Tube, Laser Doppler, Other)
[ ] Pitot Tube Pressure (Pa)
[ ] Measurement Time
[ ] Notes on Measurement Conditions

--- DILUTION FACTOR CALCULATION ---
[ ] Gas Emission Rate (m³/s)
[ ] Airflow to Mining Area (m³/s)
[ ] Total Airflow (m³/s)
[ ] Dilution Factor
[ ] Gas Type (Primary Contributor) (Methane, Carbon Monoxide, Other)
[ ] Notes/Comments on Calculation
[ ] Date of Calculation

--- GAS MONITORING ---
[ ] Monitoring Start Time
[ ] Methane Concentration (ppm)
[ ] Carbon Monoxide Concentration (ppm)
[ ] Oxygen Concentration (%)
[ ] Gas Detection Equipment Model (Model A, Model B, Model C)
[ ] Calibration Expiration Date (YYYY-MM-DD)
[ ] Gas Monitoring Notes

--- VENTILATION CONTROL SETTINGS ---
[ ] Fan Speed (RPM)
[ ] Air Volume (m³/s)
[ ] Ventilation Pressure (Pa)
[ ] Ventilation Mode (Normal, High, Low, Standby)
[ ] Time of Adjustment
[ ] Reason for Adjustment
[ ] Control System Status (Operational, Alarm, Fault)

--- FAN PERFORMANCE EVALUATION ---
[ ] Fan RPM (Revolutions Per Minute)
[ ] Motor Amperage (Amps)
[ ] Static Pressure (inches of water)
[ ] Air Volume (CFM or m³/s)
[ ] Fan Noise Level (Subjective) (Normal, Slightly Elevated, Elevated, Excessive)
[ ] Fan Vibration Observation (Describe)
[ ] Fan Efficiency Rating (if available) (Unknown, Less than 75%, 75-85%, 85-95%, 95% or higher)
[ ] Last Maintenance Date

--- STOPING AREA VENTILATION ---
[ ] Airflow (m³/s) at Face
[ ] Gas Concentration (methane, %) at Face
[ ] Distance to Nearest Ventilation Control Panel (m)
[ ] Ventilation Direction (as per plan) (Correct, Incorrect - Deviation Required)
[ ] Observations & Deviations
[ ] Time of Ventilation Check
[ ] Potential Hazards Identified (Air Stagnation, Gas Build-up, Dust Concentration, Insufficient Airflow, None)

--- RETURN AIRWAY ASSESSMENT ---
[ ] Airflow Measurement (m³/s)
[ ] Description of Airway Condition
[ ] Evidence of Scaling/Support Required? (Yes, No, Unsure)
[ ] Potential Hazards Observed (Blockage, Water Inflow, Ground Instability, Poor Ventilation, None)
[ ] Return Airway Location
[ ] Date of Assessment

--- VENTILATION OBSTRUCTION CHECK ---
[ ] Obstruction Location (GPS Coordinates)
[ ] Type of Obstruction (Rockfall, Equipment, Debris, Material Storage, Other)
[ ] Detailed Description of Obstruction
[ ] Estimated Obstruction Volume (m³)
[ ] Impact on Airflow? (No Impact, Minor Impact, Moderate Impact, Significant Impact)
[ ] Photo of Obstruction
[ ] Time Obstruction Notified

--- RECORD KEEPING & REPORTING ---
[ ] Date of Ventilation Dilution Check
[ ] Time of Ventilation Dilution Check
[ ] Average Methane Concentration (ppm)
[ ] Average Carbon Monoxide Concentration (ppm)
[ ] Dilution Factor Achieved
[ ] Dilution Factor Acceptance Status (Acceptable, Marginal, Unacceptable)
[ ] Observations & Deviations
[ ] Ventilation Officer Signature

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