Results 11 - 14 of 14

• Gas-Sampling Capability of Vacutainers
  1/1/1978 - Reports of Investigations
  Tests were conducted to study shelf life of evacuated vacutainer samplers prior to sampling and also to check the stability of sampled gases prior to analysis.
• Three Coal Mine Ventilation Studies Using Sulfur Hexafluoride Tracer Gas
  1/1/1976 - Reports of Investigations
  This report describes three coal mine ventilation studies by the Bureau of Mines in which sulfur hexafluoride (SF6) was used as a tracer gas.
• Tracer Gas as an Aid in Mine Ventilation Analysis
  1/1/1974 - Reports of Investigations
  The Bureau of Mines has successfully used sulfur hexafluoride (SF6) as a tracer gas to measure mine air flows under conditions where conventional methods have failed. SF6 was employed experimentally to measure accurately recirculation of return into int...
• Using Sulfur Hexafluoride as a Gaseous Tracer to Study Ventilation Systems in Mines
  1/1/1974 - Reports of Investigations
  The Bureau of Mines found sulfur hexafluoride (SF6), released from a lecture bottle, to be an ideal gaseous tracer for studying mine ventilation systems. In a Pennsylvania limestone mine, this technique was useful in evaluating the effectiveness of auxi...