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A spiral sequential sampler for air and liquids :preliminary results

Three coal mine ventilation studies using sulfur hexafluoride tracer gas

Brattice window method for measuring leakage through mine stoppings

Methane accumulations in coal mine roof cavities

Published Year

• 1970-1979 (4) *

Subject

• Mine ventilation (3)
• Air sampling apparatus (1)
• Coal mines and mining--Safety measures (1)
• Methane--Measurement (1)
• Mine explosions (1)
• Mine gases (1)
• Sulfur hexafluoride (1)

Author

• Kissell, Fred N. (4)
• Vinson, Robert P. (4) *
• Thimons, Edward D., (2)

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