FIRE EXTINGUISHERS

1. FIRE EXTINGUISHERS

2. Delmar; Firefighter’s Handbook-Chapter 2 IFSTA Essentials 5th Edition – Chapter 6 NFPA 10; Portable Fire Extinguishers References:

3. Evaluate if a fire should be attempted to be put out with an extinguisher. Calculate a fire extinguisher’s potential fire fighting capability. Describe fire extinguisher classes and what type of fire it is designed to extinguish. Operate a fire extinguisher properly. Objectives:

4. How Is Fire Extinguished • Remove fuel – burn house to the ground or remove logs from fireplace • Remove Oxygen • Remove heat • Break Chain Reaction

5. Can this be put out with a fire extinguisher?

6. Example of fire in Free Burning Phase.

7. Example of a fire in a later stage.

8. What You Must Know BeforeUsing a Portable Fire Extinguisher Location of the fire Extent Risk/benefit Which fire extinguisher Location of exit

9. Not An Extinguisher Fire • Too Big • Too wide an area • Location of exit or unknown exit

10. Can this put out with an extinguisher?

11. FireExtinguisherInspections • Check for Location • Check for Inspection Date • Check for Hydrostatic Date • Check Nozzle for Obstructions • Check for Damage • Check for Presence of Pin/Seal • Check Gauge • Check Condition of Hose

12. Obsolete Extinguishers • Soda acid. • Chemical foam (except film-forming.) • Vaporizing liquids. • Cartridge-operated water or loaded stream. • Copper or brass extinguishers. Never Operate Obsolete Extinguishers.

13. Additional Obsolete Extinguishers • Pressurized water extinguishers manufactured prior to 1971 • Stored pressure extinguishers manufactured prior to 1955 (Including common CO2 extinguishers). • Class B extinguishers with a 4B, 6B, 8B, 12B or 16B rating. • Extinguishers that must be inverted to operate. • Stored pressure water extinguishers with fiberglass shell manufactured prior to 1976. • Stored pressure dry chemical extinguishers (common multipurpose ABC extinguishers) manufactured prior to October 1984. • Fire extinguishers that can not be serviced in accordance with the manufacturer’s maintenance manual.

15. Class A Extinguisher Ratings • Extinguisher Rating of 1A – 40A • A rating of 1A has the same fire fighting capability as 1.25 gallons of water

16. Math Quiz • How many gallons would a 20 A rated extinguisher be equivalent?

17. Class B Extinguisher Ratings • Extinguisher Rating of 1 - 640 • A rating of 1B has the fire fighting capability for a non-expert to extinguish 1 square foot of flammable liquids • The rating assumes that a non-expert has 40% capability of an expert

18. Math Quiz How big of a class B fire should a non expert be able to extinguish with an extinguisher rated at 20 B? What about an expert?

20. A ORDINARY COMBUSTIBLES-Class A Numerical Rating Based on Effectiveness

22. B FLAMMABLE LIQUIDS-Class B Numerical Rating Based on Effectiveness

27. C ELECTRICAL EQUIPMENT-Class C No Numerical Rating-only a Certification

28. COMBUSTIBLE METALS-Class D No Numerical Rating-only a Certification

29. K * Artist’s Rendition KITCHEN MEDIA- Class K No Numerical Rating-only a Certification

30. Size 6 Liter or 21/2 Gallon Kitchen Wet-Chemical Application Class A Limited on Class B Class C and Class K Operating Principle Stored Pressure

31. Effects of using wrong agent

32. Acetone Wood Cooking oil Propane Magnesium Car Couch TV Trash can Class That Fire

33. P A S S Pull Aim Squeeze Sweep

34. Demonstration/Practice • We will demo the skilled use of three types of fire extinguishers • Water can • CO2 • Dry Chemical • Each of you will get to practice the use of three different types of extinguishers

35. Evaluate if a fire should be attempted to be put out with an extinguisher. Calculate a fire extinguisher’s potential fire fighting capability. Describe fire extinguisher classes and what type of fire it is designed to extinguish. Operate a fire extinguisher properly. Objectives:

36. Take a 10 Minute Break and Report To The High Bay Any Questions