Flammable and Combustible Liquids. INSY 3020 Spring 2006. Where do you encounter Flammable Liquids. Gasoline – Car/Truck BBQ Deodorant Sprays/Perfumes. Flammable and Combustible Liquids. 29CFR 1910.106 Based on National Fire Protection Association-NFPA 30 Code
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How will you find the vapor pressure of a liquid?
Vapor with high density are more dangerous than vapors with low density.
Relationship between Boiling Point and Vapor Pressure
It is determined by heating the liquid in test equipment and measuring the temperature at which a flash will be obtained when a small flame is introduced above the surface of the liquid.
Lower Flammable Limit (LFL) or Lower Explosive Limit (LEL)
The percentage of vapor in the air below which a fire cannot occur.
This is because there isn’t enough vapor fuel: mixture is too lean.
Upper Flammable Limit (LFL) or Upper Explosive Limit (UEL)
The percentage of vapor in the air above which a fire cannot occur.
This is because there isn’t enough air for the fire: mixture is too rich.
Classified among two classes
Class III Classification
Class IIIA - shall include those with flashpoints at or above 140 F (60 C) and below 200 F (93.3 C)
Class IIIB - shall include those with flashpoints at or above 200 F (93.3 C).
Exposure Control Measures Include:
liquids and soaked rags.
Controlling the potential for fire and explosion with flammable liquids is done through:
Remember: STUD- Storage, Transfer, Use and Disposal.
Combustible waste material and residues must be:
Sources of ignition can include:
Static charge can be generated when liquids are dispensed and it must be controlled by proper grounding as follows:
Ensure that the electrical equipment is of the correct type:
In order to perform hot work, activities must be planned:
Only approved containers and portable tanks may be used for storage
Portable Tanks must have provisions for emergency venting
Metal containers and portable tanks should meet the requirements of the Department of Transportation
Gases must be stored in a safety can
Safety Can: An approved red 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 subjected to fire exposure.
Liquids located outside of storage cabinets/areas shall not exceed:
25 Gallons of Class IA in containers.
120 Gallons of Class IB, IC or
Class II liquids in containers.
How do you get information about
What is a material safety data sheet?
MSDS – what information do they have?
Flammable & highly volatile
Headaches, eye irritation
Use with adequate ventilation, keep away from open flame
Wear respirator, rubber gloves
Eyes: flush with water for 15 minutes
John Doe 1234 Maple St. Anywhere, USA