Mine Gases - Usmra.com

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Carbon Dioxide– Chemical Formula: CO 2– Specific Gravity: 1.529– TLV: 5000 PPM– STEL: 15,000 PPM– Source: Product of complete combustslow oxidation of carbon products,breathing– Characteristics: No color or odor,acidic taste above 10%
Toxic Gases(Explosive)• Carbon Monoxide– Chemical Formula: CO– Specific Gravity: 0.967– Needs 6% O 2 to ignite– Ignition Temperature: 1100 o F– Explosive Range: 12.5- 74%– TLV: 50 ppm– STEL: 400 PPM– Source: Incomplete combustion, diesels, gasoline engines– Characteristics: No color, odor, or taste– Effect on the body: 300 times more attracted to hemoglobinthan oxygen.
Page 1 and 2: Mine RescueGasDetectionPa. Bureau o
Page 3 and 4: Category of Gases• Noxious - Asph
Page 5 and 6: Exposure Limits• Threshold Limit
Page 7 and 8: Mine Gases & their ComponentsAIR•
Page 9 and 10: Oxygen Present % Effect• 21% Brea
Page 11 and 12: Acetylene- Chemical Formula: C 2 H
Page 13: Noxious Gases(Non Explosive)• Nit
Page 17 and 18: Toxic Gases (Non-Explosive)• Nitr
Page 19 and 20: Smoke• Tiny particles of solid an
Page 21: Detection Devices• Hand held dete

Mine Gases - Usmra.com

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