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Breakthrough Time

Breakthrough Time. Elapsed Time Between Initial Contact of the Chemical on the Outer Surface of the Suit Until it Reaches the Inside Surface of the Suit Optimum Time: >480 Minutes. Proper Use. Pre-use Inspection Proper Donning In-use Consideration: Avoid Contamination Periodic Inspection

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Breakthrough Time

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  1. Breakthrough Time Elapsed Time Between Initial Contact of the Chemical on the Outer Surface of the Suit Until it Reaches the Inside Surface of the Suit Optimum Time: >480 Minutes B461 Course

  2. Proper Use • Pre-use Inspection • Proper Donning • In-use Consideration: • Avoid Contamination • Periodic Inspection • Know Limitations • Proper Decontamination/Doffing • Cleaning and Storage B461 Course

  3. Limitations • No Clothing Material Resistant to all Chemicals • Decreased Manual Dexterity/Mobility • Impaired Vision • Heat Stress • All Affect Worker Safety and Efficiency B461 Course

  4. Decision Factors • Chemical Resistant/Other Performance Requirements • Amount/Length of Exposure • Hazardous Properties of Chemicals Involved • Work Function/Application B461 Course

  5. Tyvek Nomex Polyethylene Saranex Nitrile Polyvinyl Alcohol (PVA) Butyl Rubber Neoprene Chloropel Natural Rubber Viton Polyvinyl Chloride (PVC) Protective Materials B461 Course

  6. Heat and Physical Stress • Any use of CPC&E Increase Heat and Physical Stress • All CPC can Cause Heat Stress Conditions • Wearing CPC&E also Increases Risk of Accidents • Selecting Level A (Over B,C) should be Balanced Against the Probability of Stress and Accidents • Employee Heat & Physical Stress should be Monitored by the Hospital Safety Officer B461 Course

  7. Chemical Resistance Charts • Available from Manufacturers/Independent Labs • Majority Reflect Ability to Resist Degradation (Qualitative) • Limited Permeation Data (Quantitative) • Useful if Applied with Discretion in Conjunction with Proper Hazard Evaluation B461 Course

  8. Inspection Procedures • Before Wearing Any CPC&E It Should Be Properly Inspected • Create a Checklist for Visual Inspections • Suit Should Be Inspected Immediately Before Use • Monthly When Not in Use B461 Course

  9. Inspection Procedures • Spread suit out on a flat surface • Examine the outside for the following: • Fabric for abrasions, cuts, holes, or tears • Fabric has retained the original flexibility and durability • Seams for separation or holes • Zippers, buttons, storm flaps, and other connecting devices for proper sealing and operation B461 Course

  10. Inspection Procedures (cont'd) • Inside a dark room: • Use flashlight inside of the suit • Look for pinpoints of light from outside the suit • Refer to manufacturer’s recommendations for: • Routine, and/or • Special inspection procedures B461 Course

  11. Inspect Respirator Equipment • Components • Face-piece • Breathing tube • Hood • Cartridges • Belt and snaps • Cleanliness • Batteries • Flow check (4-6 cfm) B461 Course

  12. Respirator Fit Testing • Seal of face-piece • Most important factor • Fit test with respirator to be used • Types of fit testing: • Qualitative • Quantitative • OSHA Regulation • 29 CFR 1910.134 B461 Course

  13. Hands-on Exercise • Determining Degradation of Chemicals to Specific CPC • Determining Permeation of Chemicals to Specific CPC B461 Course

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