Respirator Change Schedules Decision Logic Flowcharts

• Selection Flowchart
• Flowchart 1
• Flowchart 2
• Flowchart 3
• Flowchart 4
• Flowchart 5
• Flowchart 6

Text Version

• 5
  • For each contaminant present:
  • Were data obtained using the same sorbent material?
    • Yes - Go to "Were data obtained at similar or higher humidity?"
    • No - 5R Go to flowchart 4
  • Were data obtained at similar or higher humidity?
    • Yes - Go to "Were temperature and work rate similar?"
    • No - 5R Go to flowchart 4
  • Were temperature and work rate similar?
    • Yes - Go to "Are there multiple contaminants present?"
    • No - 5R Go to flowchart 4
  • Are there multiple contaminants present?
    • Yes - Go to "Were data obtained at similar or higher concentrations?"
    • No - Calculate the sum of all contaminant concentrations - Go to "Were data obtained at similar or higher concentrations?"
  • Were data obtained at similar or higher concentrations?
    • Yes - Go to "From breakthrough data obtain projected service life for contaminant based on concentration (total) and humidity"
    • No - 5R Go to flowchart 4
  • From breakthrough data obtain projected service life for contaminant based on concentration (total) and humidity.
  • Adjust service life for number of cartridges and work rate.
  • Multiply service life by safety factor.
  • Are there additional contaminants to process?
    • Yes - Go to "For each contaminant present"
    • No - Use the minimum service life calculated as the respirator service life - 7 Go to flowchart 4