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Penetration of Methyl Isocyanate Through Organic Vapor and Acid Gas Respirator Cartridges.


PB87103057

Publication Date 1986
Personal Author Moyer, E. S.; Berardinelli, S. P.
Page Count 66
Abstract Methyl isocyanate (MIC) is a very volatile liquid which is highly toxic (TLV 0.02 ppm) and possesses inadequate warning properties, because of high toxocity and lack of adequate warning properties, organic vapor (OV) cartridges are contra-indicated for use against MIC. Nevertheless, a study was undertaken to evaluate the MIC breakthrough of OV and acid gas cartridges in order to assess their effectiveness. Two different manufacturer's OV and acid gas cartridges were tested against MIC at three different relative humidities and at different concentrations of MIC in air. Breakthrough times were generally very short. Relative humidity had a large effect on the breakthrough characteristics. The test apparatus and results will be presented.
Keywords
  • Respirators
  • Protective masks
  • Performance
  • Penetration
  • Breathing apparatus
  • Tables(Data)
  • Vapors
  • Concentration(Composition)
  • Toxic substances
  • Isocyanic acid/(methyl-ester)
Source Agency
  • National Institute for Occupational Safety and Health
NTIS Subject Category
  • 95E - Life Support Systems
Corporate Authors National Inst. for Occupational Safety and Health, Morgantown, WV. Div. of Safety Research.
Document Type Technical Report
NTIS Issue Number 198701
Penetration of Methyl Isocyanate Through Organic Vapor and Acid Gas Respirator Cartridges.
Penetration of Methyl Isocyanate Through Organic Vapor and Acid Gas Respirator Cartridges.
PB87103057

  • Respirators
  • Protective masks
  • Performance
  • Penetration
  • Breathing apparatus
  • Tables(Data)
  • Vapors
  • Concentration(Composition)
  • Toxic substances
  • Isocyanic acid/(methyl-ester)
  • National Institute for Occupational Safety and Health
  • 95E - Life Support Systems
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