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Flammable liquids
• Class I - liquids have flashpoints below 100 degrees F, with vapor pressures not exceeding 40 psia
• Class IA - liquids having flashpoints below 73 degrees F and boiling points below 100 degrees F
1a
Flammable liquids
• Class IB - liquids having flashpoints below 73 degrees F and boiling points at or above 100 degrees F
• Class IC - liquids having flashpoints at or above 73 degrees F and below 100 degrees F
1b
Combustible liquids
• Class II liquids have flashpoints at or above 100 degrees F and below 140 degrees F
1d
Combustible liquids
• Class III liquids have flashpoints at or above 140 degrees F• Class IIIA liquids have flashpoints at or
above 140 degrees F and below 200 degrees F
• Class IIIB liquids have flashpoints at or above 200 degrees F
1e
Handling and storage procedures• Two forms of storage:
• Reserve storage in drums• Operational storage in
small quantities at work stations
• Connect drums to a grounding system
2a
Handling and storage procedures• Liquids can be dispensed by two
methods:• Gravity flow• Pump methods
2b
Handling and storage procedures• Areas where flammable
liquids are transferred from one container to another must:• be protected from ignition
sources• have drainage or other methods
to control spills• have natural or mechanical
ventilation
2c
Handling and storage procedures• Flammable liquids used at workstations
must not exceed the sum of:• 25 gallons of Class IA liquids in containers• 120 gallons of Classes IB, IC, II, or III liquids in
containers• 660 gallons of Class IB, IC, Class II, or Class IIIA
liquids in a single portable tank
2e
Handling and storage procedures• Use specially designed waste
cans for the disposal of waste
• Remember that it is the vapors, not the liquid that burns
• Use specially developed absorbent materials for spill cleanup
2f
Flood emergencies• If flammable liquids are stored in
tanks, review and understand the location and contents of flood emergency instructions
• Emergency action plans
3a
Flood emergencies and storage tanks
• Categories of storage tanks• Above ground• Underground• Tanks inside of buildings
3b
Flood emergencies and storage tanks• Types of storage tanks
• Atmospheric• Low-pressure• Pressure vessels
3c