1. Laboratory Safety-Flammable Liquids Flammable Liquids and Fire Codes for Laboratories

2. Laboratory Safety-Flammable Liquids Properties of Flammable Liquids Invisible Vapor is the Main Concern!

3. Laboratory Safety-Flammable Liquids Properties of Flammable Liquids Definitions: FLASH POINT The temperature at which a liquid gives off sufficient vapors to form an ignitable mixture with air…near the surface of the liquid.

4. Laboratory Safety-Flammable Liquids Properties of Flammable Liquids Definitions: Ignition Temperature The minimum temperature required to initiate or cause self-sustained combustion without ignition from an external source. Also called auto- ignition temp.

5. Laboratory Safety-Flammable Liquids Properties of Flammable Liquids Definitions: Upper and Lower Explosive Limits The range of concentration of a flammable gas or vapor (% volume in air) in which a explosion can occur upon ignition in a confined area.

6. Laboratory Safety-Flammable Liquids CompoundFP (°F)LEL(%)UEL Acetone 02.613 Benzene 121.58 CS 2 -22150 Ethanol 55319 Et. Oxide 03.6100 Ether -49236 Octane 600.53 Hydrogen 475

7. Laboratory Safety-Flammable Liquids Compound Ignition Temp Vapor Density Vapor Pressure Acetone 1000°F2240 mm Benzene 10442.77100 CS 2 2122.64400 Ethanol 7931.5940 Ether 3562.56442 Octane 4283.8610 Hydrogen 10750.0069

8. Laboratory Safety-Flammable Liquids Energy Source Fuel Oxygen or Oxidizer Chain Reaction The Phenomenon of Fire

9. Laboratory Safety-Flammable Liquids Fire Codes Who Regulates Flammables? State Fire Marshal (NFPA, OBBC, and Ohio Fire Code) OSHA (Occupational Safety) DOT (Transportation) EPA (Flammable Waste)

10. Laboratory Safety-Flammable Liquids Fire Codes-NFPA Flammable liquids have a flash-point of less than 100°F Combustible liquids have a flash-point of 100°F or greater

11. Laboratory Safety-Flammable Liquids Fire Codes-NFPA Flammable Liquid Classification Class IA- FP<73°F, BP<100°F Class IB- FP 100°F Class IC- 73°F >FP<100°F Class II- 100°F >FP<140°F Class IIIA- 140°F >FP<200°F Class IIIB- FP > 200°F

12. Laboratory Safety-Flammable Liquids Fire Codes-NFPA Flammable Liquid Classification Common Class IA Solvents Acetaldehyde Ethyl Ether Ethylene Oxide Pentane

13. Laboratory Safety-Flammable Liquids Fire Codes-NFPA Flammable Liquid Classification Common Class IB Solvents AcetoneBenzeneAcetonitrile EthanolTHFEthyl Acetate HexaneGasolineCarbon Disulfide MethanolMEKCyclohexane ToluenePyridine

14. Laboratory Safety-Flammable Liquids Fire Codes-NFPA Flammable Liquid Storage Hazardous chemicals stored in the open shall be kept to the minimum necessary for the work being done.

15. Laboratory Safety-Flammable Liquids Fire Codes-NFPA Flammable Liquid Storage -Safety Cabinets

16. Laboratory Safety-Flammable Liquids Fire Codes-NFPA Flammable Liquid Storage

17. Laboratory Safety-Flammable Liquids Fire Codes-NFPA-Flammable Liquid Storage

18. Laboratory Safety-Flammable Liquids Fire Codes-NFPA-Flammable Liquid Storage

19. Laboratory Safety-Flammable Liquids Fire Codes-NFPA-Flammable Liquid Storage

20. Laboratory Safety-Flammable Liquids Fire Codes- NFPA Flammable Liquid Storage

21. Laboratory Safety-Flammable Liquids Fire Codes-NFPA-Flammable Liquid Storage

22. Laboratory Safety-Flammable Liquids Fire Codes- NFPA Flammable Liquid Storage

23. Laboratory Safety-Flammable Liquids Fire Codes- NFPA Flammable Liquid Storage

24. Laboratory Safety-Flammable Liquids Fire Codes- NFPA Flammable Liquid Storage

25. Laboratory Safety-Flammable Liquids Fire Codes- NFPA Flammable Liquid Storage

26. Laboratory Safety-Flammable Liquids Fire Codes-NFPA-Flammable Liquid Storage

27. Laboratory Safety-Flammable Liquids

29. Bonding And Grounding

30. Laboratory Safety-Flammable Liquids Flammable Liquid Storage in Refrigerators

31. Laboratory Safety-Flammable Liquids Accidents Involving Flammable Liquids

32. Laboratory Safety-Flammable Liquids Flammable Liquid Transport