MIRAN Gas Meter/Detector

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MIRAN Gas Meter/Detector
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MIRAN Gas Meter/Detector

• Introduction
• Air monitoring data is useful for
• Assessing the health risks to the public and
  response workers.
• Selecting personal protective equipment.
• Delineating areas where protection is needed.
• Determining actual or potential effects on the
  environment.
• Selecting actions to mitigate the hazards
  safely and effectively.

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MIRAN Gas Meter/Detector

• To be useful air monitoring instruments must be
• Portable and rugged.
• Easy to operate.
• Inherently safe.
• Able to generate reliable and useful
  results.

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MIRAN Gas Meter/Detector

• The response time, sensitivity, selectivity,
  accuracy and precision of an instrument are
  important in evaluating the reliability and
  usefulness of the data the instrument generates.

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MIRAN Gas Meter/Detector Limitations
Considerations

• Temperature
• Oxygen Levels
• Interfering Coumpounds
• Organic Lead
• Sulfur compounds
• Silicone
• Acid Gases

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Toxic Atmosphere Monitors

• Toxic atmosphere monitoring is done to
• identify airborne concentrations that could
  pose a toxic risk to response workers and the
  public.
• evaluate the need for and type of personal
  protective equipment.
• set up work zones or areas where contaminants
  are or are not present.

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MIRAN Gas Meter/Detector

• Portable Infrared(IR)
• Microprocessor controlled, single beam
• Capable of detecting hundreds of compounds

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MIRAN Gas Meter/Detector

• Sample is drawn at 25-30L/min
• Sample absorbs IR energy from the Nichrome wire
• Energy absorbed by sample correlates to ppm

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MIRAN Gas Meter/Detector

• Capable of measuring various gases at same time
• Compares to computerized list and displays most
  probable agent detected
• Good for inorganic and organic compounds

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References Cited

• http//www.ashtead-technology.com/instruments/new_
  instruments.htm Accessed 05/02/01
• NIOSH Manual of Analytical Methods (NMAM), 4th
  ed.DHHS (NIOSH) Publication 94-113 (August,
  1994),Cassinelli, M.E. O'Connor, P.F.
  (pfo1_at_cdc.gov), Eds.

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Bibliography

• DiNardi Salvatore R. (1998) The Occupational
  Environment-Its Evaluation and Control, AIHA,
  Fairfax, Virginia
• Goetsch David L. (1999) Occupational Safety and
  Health for Technologists, Engineers, and
  Managers, Prentice Hall, Upper Saddle River, New
  Jersey