HazMat Ch07

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HazMat Ch07

  1. 1. 7Mission-SpecificCompetencies: Personal Protective Equipment
  2. 2. 7 Objectives (1 of 3)• Describe personal protective equipment (PPE) for hazardous materials incidents• Describe the capabilities of the PPE provided by the authority having jurisdiction (AHJ) so as to perform any mission-specific tasks assigned
  3. 3. 7 Objectives (2 of 3)• Describe how to don, work in, and doff the PPE provided by the AHJ• Describe PPE performance requirements• Describe ways to ensure that personnel do not go beyond their level of training and equipment
  4. 4. 7 Objectives (3 of 3)• Describe cooling technologies• Terminate the incident by completing the reports and documentation pertaining to PPE
  5. 5. 7 Selecting Personal Protective Equipment• Use risk-based approach in selecting• Disposable, single, or limited use• Reusable – Need testing at regular intervals – Store in cool, dry place
  6. 6. 7 TRACEMP (1 of 2)• Acronym for potential responder hazards – Thermal – Radiological – Asphyxiating – Chemical
  7. 7. 7 TRACEMP (2 of 2)– Etiological/biological– Mechanical– Psychogenic
  8. 8. 7Street Clothing and Work Uniforms (1 of 2)• Least protection• Nomex flame-resistant jumpsuit
  9. 9. 7Street Clothing and Work Uniforms (2 of 2) A Nomex jumpsuit.
  10. 10. 7 Structural Firefighting Protective Equipment (1 of 3)• Includes: – Helmet – Bunker coat – Bunker pants – Boots – Gloves
  11. 11. 7 Structural Firefighting Protective Equipment (2 of 3)• Includes: – Hood – SCBA – Personal alert safety system (PASS) device
  12. 12. 7 Structural Firefighting Protective Equipment (3 of 3)Standard turnout gear or structural firefighting gear.
  13. 13. 7 High Temperature–Protective Equipment (1 of 2)• Protects for short exposure• Does not protect from hazardous materials
  14. 14. 7 High Temperature–Protective Equipment (2 of 2) High temperature–protective equipment protects thewearer from high temperatures during a short exposure.
  15. 15. 7 Chemical-Protective Clothing (1 of 2)• Compatibility charts – Help choose right clothing for incident• Chemical-resistant materials resist: – Penetration – Permeation – Degradation
  16. 16. 7 Chemical-Protective Clothing (2 of 2)• May be single- or multi-piece garment• Two main kinds: – Vapor-protective clothing – Liquid splash–protective clothing
  17. 17. 7 Vapor-Protective Clothing (1 of 2)• Full body protection• Used for highly contaminated environments• Requires SCBA
  18. 18. 7 Vapor-Protective Clothing (2 of 2)Vapor-protective clothing retains body heat, so it also increasesthe possibility of heat-related emergencies among responders.
  19. 19. 7 Liquid Splash–Protective Clothing (1 of 2)• Protects wearer from chemical splashes• Does not protect from gases and vapors
  20. 20. 7Liquid Splash–Protective Clothing (2 of 2) Liquid splash–protective clothing must be worn whenever there is the danger of chemical splashes.
  21. 21. 7 Respiratory Protection• SCBA – 30-minute units – 60-minute units• Required by law in contaminated environments
  22. 22. 7 Level A Ensemble (1 of 2)• Fully encapsulating garment• Encloses wearer and the respiratory protection• Protects against only brief flash fire• Affords alpha radiation protection
  23. 23. 7 Level A Ensemble (2 of 2)A Level A ensemble envelops the wearer in a totally encapsulating suit.
  24. 24. 7 Level B Ensemble (1 of 3)• Common level of protection, often chosen for its versatility• Chemical protective: – Clothing – Boots – Gloves – SCBA
  25. 25. 7 Level B Ensemble (2 of 3)• High level of respiratory protection• Less skin protection• Little or no flash fire protection
  26. 26. 7 Level B Ensemble (3 of 3)A Level B protective ensemble provides a high level of respiratory protection but less skin protection.
  27. 27. 7 Level C Ensemble (1 of 3)• Appropriate when airborne contaminant is known• Worn in long-duration, low-hazard situations
  28. 28. 7 Level C Ensemble (2 of 3)• Consists of: – Standard work clothing – Chemical-protective clothing – Chemical-resistant gloves – Respiratory protection other than SCBA/SAR
  29. 29. 7 Level C Ensemble (3 of 3)Level C protective ensemble includes chemical-protective clothing and gloves as well as respiratory protection.
  30. 30. 7 Level D Ensemble (1 of 2)• Work uniform that includes coveralls• Provides minimal protection
  31. 31. 7 Level D Ensemble (2 of 2)A Level D protective ensemble is primarily a work uniform that includes coveralls and provides minimal protection.
  32. 32. 7 Equipment Performance• Garments will withstand reasonable insults• Not “bulletproof”• Read manufacturer’s specifications
  33. 33. 7 Responder Safety (1 of 3)• Issues can arise from wearing PPE – Heat exhaustion – Heat cramps – Heat stroke• All are preceded by dehydration
  34. 34. 7 Responder Safety (2 of 3)• Field of vision is compromised – Can result in slips and falls – Face piece fogs up• Bulky PPE inhibits mobility• Gloves become slippery
  35. 35. 7 Responder Safety (3 of 3)• Safety procedures include: – Pre-entry medical monitoring – Use of buddy system – Radio communication – Hand signals
  36. 36. 7 Heat Exchange Units• Forced-air cooling systems• Ice-cooled or gel-packed vests• Fluid-chilled systems• Phase-change cooling technology
  37. 37. 7 Forced-Air Cooling Systems• Force prechilled air through a system of hoses worn close to the body• Lightweight, provide long-term cooling benefits• Inhibit mobility (attached to external, fixed compressor)
  38. 38. 7 Ice-Cooled or Gel-Packed Vests (1 of 2)• Low cost• Portable• Packs can be “recharged” (refrozen)• Bulky• May fool body into retaining heat
  39. 39. 7Ice-Cooled or Gel-Packed Vests (2 of 2) Ice-cooled system.
  40. 40. 7 Fluid-Chilled Systems (1 of 2)• Pump ice-chilled liquid through tubes• May limit mobility• Additional weight can increase workload and generate more heat
  41. 41. 7Fluid-Chilled Systems (2 of 2) A fluid-chilled or water-cooled system.
  42. 42. 7Phase-Change Cooling Technology (1 of 2)• Temperature of material is chilled to 60°F• Fabric wicks away perspiration• “Recharges” more quickly than gel-packed vest
  43. 43. 7Phase-Change Cooling Technology (2 of 2) Phase-change cooling technology.
  44. 44. 7 Reporting and Documenting Incidents• Important part of response• Correlated with how well organized response was• Formal accounts of event• Exposure records
  45. 45. 7 Summary (1 of 3)• Use risk-based approach in selecting PPE• Follow policies of local jurisdiction• Chemical-protective clothing includes vapor-protective and liquid splash−protective clothing
  46. 46. 7 Summary (2 of 3)• NFPA 1994 covers garment and respiratory protection• Levels A is required when environment exceeds IDLH values for skin absorption• Level B is minimum when operating in unknown environment• Level C is appropriate when the type of airborne substance is unknown, concentration is measured and criteria for APR’s are met
  47. 47. 7 Summary (3 of 3)• PPE may cause heat-related maladies• Cooling technology under garment may help• Follow manufacturer’s guidelines• Written accounts of event and exposure records needed

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