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Submarine Exposure Guidance Levels for Selected Hydrofluorocarbons HFC-236fa, HFC-23,and HFC-404a (2000) / Chapter Skim
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... Exposure Guidance Levels for Components of HFC-404a The three halocarbons that comprise HFC-404a are HFC-143a, HFC-125, and HFC-134a. For component HFC-143a, the subcommittee estimated a 1hr EEGL of 25,000 ppm on the basis of a cardiac sensitization study in dogs.
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Key Terms

  • cardiac sensitization
  • guidance levels
  • exposure guidance
  • toxicity study
  • interspecies variability

  • tested concentration
  • individual components
  • guidance level
  • sensitization study
  • day cegl


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