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Hazardous Materials

Hazardous Materials. Subpart H. Subpart H Standards. 1910.101 Compressed Gases 1910.102 Acetylene 1910.103 Hydrogen 1910.104 Oxygen 1910.105 Nitrous Oxide 1910.106 Flammable and Combustible Liquids. Subpart H Standards.

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Hazardous Materials

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  1. Hazardous Materials Subpart H

  2. Subpart H Standards • 1910.101 Compressed Gases • 1910.102 Acetylene • 1910.103 Hydrogen • 1910.104 Oxygen • 1910.105 Nitrous Oxide • 1910.106 Flammable and Combustible Liquids

  3. Subpart H Standards • 1910.107 Spray Finishing using Flammable and Combustible Materials • 1910.108 Dip Tanks containing Flammable and Combustible Liquids • 1910.109 Explosives and Blasting Agents

  4. Subpart H Standards • 1910.110 Storage and Handling of Liquefied Petroleum Gases • 1910.111 Storage and Handling of Anhydrous Ammonia • 1910.119 Process Safety Management of Highly Hazardous Chemicals • 1910.120 Hazardous Waste Operations and Emergency Response

  5. Subpart H Standards • 1910.123 Dipping and coating operations: Coverage and Definitions • 1910.124 General Requirements for Dipping and Coating Operations

  6. Subpart H Standards • 1910.125 Additional Requirements for Dipping and Coating Operations that use Flammable or Combustible Liquids • 1910.126 Additional Requirements for Special Dipping and Coating Operations

  7. Definitions • Hazardous Chemical • Occupational Safety & Health Act (OSHA) term that denotes any chemical that would be a risk to employees if exposed in the work place

  8. Definition • Highly Hazardous Chemical • OSHA term that denotes any chemical that would posses toxic, reactive, flammable or explosive properties

  9. Definitions • Aerosol • Aerosol shall mean a material which is dispensed from its container as a mist, spray, or foam by a propellant under pressure

  10. Definitions • Container • Container shall mean any can, barrel, or drum

  11. Definitions • Closed Container • Closed container shall mean a container so sealed by means of a lid or other device that neither liquid or vapor will escape from it at ordinary temperatures

  12. Definitions • Fire Area • Fire area shall mean an area of a building separated from the remainder of the building by construction having a fire resistance of at least 1 hour and having all communicating openings properly protected by an assembly having a fire resistance rating of at least one hour.

  13. Definitions • Flash Point • Flash point means the minimum temperature at which a liquid gives off vapor within a test vessel in sufficient concentration to form an ignitable mixture with air near the surface of the liquid. The flash point is normally an indication of susceptibility to ignition.

  14. Definitions • Combustible Liquid • Combustible liquid means any liquid having a flash point at above 100°F (37.8 °C). • Combustible liquids are divided into two classes: • Class II • Class III

  15. Definitions • Flammable Liquid • Flammable liquid means any liquid having a flash point below 100 °F (37.8 °C) or higher, the total of which make up 99 percent or more of the total volume of the mixture.

  16. Definitions • Portable Tank • Portable tank shall mean a closed container having a liquid capacity over 60 U.S. gallons and not intended for fixed installation

  17. Definitions • Safety Can • Safety can means an approved container, of not more than 5 gallons capacity, having a spring-closing lid and spout cover and so designed that it will safely relieve internal pressure when subject to fire exposure

  18. Flammable (Explosive) Limits • Flammable Range • The range of a combustible vapor or gas-air mixture between the upper and lower flammable limits. • Also, known as the “explosive range.”

  19. Flammable (Explosive) Limits • Lower Flammable Limit • The lowest concentration at which a combustible gas forms a flammable mixture. • Below the LFL there is too little combustible fuel to sustain a flame. • Also, known as “Lower Explosive Limit or LEL.”

  20. Flammable (Explosive) Limits • Upper Flammable Limit • The highest concentration at which a combustible gas forms a flammable mixture. • Above the UFL there is too little oxygen to sustain a flame. Better known as “too rich” to burn. • Also, known as “Upper Explosive Limit or UEL.”

  21. Flammable (Explosive) Limits • HazardousMaterialLFLUFL • Butane 1.9 8.5 • Ethylene Oxide 3.0 100.0 • Gasoline 1.4 7.6 • Hydrogen 4.0 75.0 • Isopropyl Alcohol 2.0 12.7 • Propane 2.1 9.5

  22. Container and Portable Tank Storage • This section applies only to the storage of flammable and combustible liquids in drums or other containers not exceeding 60 gallons individual capacity and portable tanks of less than 660 gallons individual capacity.

  23. Fire Control • At least one portable fire extinguisher having a rating of not less than 12-B units shall be located outside of, but not more than 10 feet from, the door opening into any room used for storage.

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