Mine Gases - Usmra.com

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What do I need to know?• What gases make up fresh air• What are the hazards of mine gases• Specific Gravity of each gas• Origin of mine gases• Explosive range• Exposure limits• What detection device(s) do I use
Category of <strong>Gases</strong>• Noxious – Asphixiant due to alack of oxygen.• Toxic – Poison, either long orshort term exposure.
Page 1: Mine RescueGasDetectionPa. Bureau o
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 and 14: Noxious Gases(Non Explosive)• Nit
Page 15 and 16: Toxic Gases(Explosive)• Carbon Mo
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

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