Flammable Liquids Storage Guidelines
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Questions and Answers

What is the main purpose of bonding when transferring flammable liquids?

  • To make sure both containers are electrically neutral to each other (correct)
  • To cool down the liquid during transfer
  • To ensure containers are securely sealed
  • To prevent the accumulation of pressure in containers

    • How far away should flammable materials be stored from ignition sources?

  • 10 feet
  • 50 feet
  • 25 feet (correct)
  • 100 feet

    • What is the requirement for dispensing Category 1 or 2 flammable liquids?

  • Containers need to be hermetically sealed
  • Both the nozzle and container must be made of glass
  • The nozzle and container must be electrically interconnected (correct)
  • They must be dispensed in a well-ventilated area

    • What does grounding refer to in the context of flammable liquids?

    <p>A wire connecting the filling container to an earth ground</p> Signup and view all the answers

    Which of the following standards addresses bonding and grounding for flammable liquids?

    <p>OSHA 29 CFR 1910.106</p> Signup and view all the answers

    What is the maximum allowed quantity of Category 1 flammable liquid in a fire area outside protected storage?

    <p>25 gallons</p> Signup and view all the answers

    Where is flammable liquid storage prohibited?

    <p>In office areas</p> Signup and view all the answers

    Which of the following is an exemption for the incidental storage of flammable liquids?

    <p>Furniture manufacturing</p> Signup and view all the answers

    What is the flash point criterion for Category 4 flammable liquids?

    <p>Flash point &gt; 60°C and ≤ 93°C</p> Signup and view all the answers

    What determines the allowable quantities of flammable liquids in a storage area?

    <p>The size of the room and its fire resistance</p> Signup and view all the answers

    What volume of a Category 2, 3, or 4 flammable liquid is allowed in a single portable tank?

    <p>660 gallons</p> Signup and view all the answers

    Which of the following structures is NOT suitable for storing flammable liquids?

    <p>Office area</p> Signup and view all the answers

    What is the minimum required ventilation capacity for an inside storage room?

    <p>6 air changes per hour</p> Signup and view all the answers

    Which of the following is NOT a requirement for the storage room design?

    <p>Redundant electrical supply</p> Signup and view all the answers

    What is the maximum size for a storage room with 2 hours fire resistance and allowed fire protection?

    <p>500 sq.ft.</p> Signup and view all the answers

    What is the minimum aisle width required in an inside storage room?

    <p>3 feet</p> Signup and view all the answers

    What happens when the allowable quantities of flammable liquids are exceeded in an inside storage room?

    <p>The liquids must be stored in separate external buildings.</p> Signup and view all the answers

    What rating is required for forklift trucks used in flammable environment storage rooms?

    <p>Rated for use in a flammable environment</p> Signup and view all the answers

    When containers hold 30 gallons or more, what is prohibited in indoor storage rooms?

    <p>Stacking containers on top of one another</p> Signup and view all the answers

    According to OSHA's regulations, what is the fire-resistive rating that allows for a maximum of 10 gallons per square foot?

    <p>2 Hours with fire protection</p> Signup and view all the answers

    Which of the following components is designed to fail in case of an explosion?

    <p>Blowout panels</p> Signup and view all the answers

    What should be incorporated into an inside storage room to handle spills?

    <p>Sumps, ramps, or dikes</p> Signup and view all the answers

    What is the maximum allowable size for glass containers holding Category 3 flammable liquids?

    <p>1 gallon</p> Signup and view all the answers

    Which type of container has the smallest maximum allowable size for Category 1 flammable liquids?

    <p>Glass or approved plastic</p> Signup and view all the answers

    What is the requirement for the doorsill height of compliant flammable storage cabinets?

    <p>At least 2 inches</p> Signup and view all the answers

    Which of the following does not require venting for fire protection purposes according to NFPA 30?

    <p>Storage cabinets</p> Signup and view all the answers

    For which category of flammable liquids do metal containers (other than DOT drums) have a maximum size of 5 gallons?

    <p>Category 2</p> Signup and view all the answers

    What is NOT an exemption to the maximum allowable size for flammable containers as stated in OSHA regulations?

    <p>Fireproof cabinets</p> Signup and view all the answers

    What gauge sheet iron must metal cabinets be constructed from according to OSHA requirements?

    <p>18-gauge</p> Signup and view all the answers

    What is the maximum allowable size for safety cans holding Category 4 flammable liquids?

    <p>5 gallons</p> Signup and view all the answers

    What should be placed in the bung of non-vented storage cabinets?

    <p>The bung itself</p> Signup and view all the answers

    What is the maximum increase in allowable quantities of flammable liquids if they are stored in approved storage cabinets?

    <p>100%</p> Signup and view all the answers

    What is required to be placed outside indoor storage rooms according to OSHA?

    <p>One portable fire extinguisher not less than 12-B units</p> Signup and view all the answers

    How far from a Category 1, 2, or 3 flammable liquid storage area must an extinguisher be located?

    <p>Not less than 10 feet and not more than 25 feet</p> Signup and view all the answers

    What is the minimum required space between buildings and flammable liquid containers?

    <p>10 feet</p> Signup and view all the answers

    Which of the following chemicals should not be stored with flammable liquids due to compatibility issues?

    <p>Calcium oxide</p> Signup and view all the answers

    What type of materials are susceptible to spontaneous heating and/or explosions?

    <p>Combustible materials</p> Signup and view all the answers

    What is a necessary feature for an outdoor storage area of flammable liquids?

    <p>It must have fire control devices</p> Signup and view all the answers

    Which of the following acids is identified as a common incompatible chemical with flammables?

    <p>Acetic acid</p> Signup and view all the answers

    What feature of outdoor storage areas is necessary to avoid spills reaching buildings?

    <p>A slope or grading of the storage area</p> Signup and view all the answers

    Why should flammable liquids not be stored with oxidizing agents?

    <p>They provide oxygen to accelerate combustion</p> Signup and view all the answers

    Study Notes

    Flammable Liquids Storage

    • Flammable liquids must be stored in designated cabinets, rooms, or warehouses.
    • Storage amounts depend on the type of business, room size, construction, fire resistance, and fire protection.
    • Storage is prohibited in some areas (e.g., office areas), except for maintenance or operating equipment.
    • "Incidental storage" is an exception for operations where handling flammable liquids is secondary to the main business activity.
    • Examples of incidental storage include automobile assembly and electronics manufacturing.
    • OSHA allows up to 25 gallons of Category 1 flammable liquids and 120 gallons of Category 2, 3, or 4 liquids in an area outside protected storage.
    • It allows up to 660 gallons of Category 2, 3, or 4 flammable liquids in a single portable tank. Local fire marshal or insurance carrier rules may be stricter.
    • OSHA categorizes flammable materials in different categories based on flash points and boiling points.

    Container Sizes

    • Table B.6.1 from 29 CFR 1910.1200 outlines criteria for flammable liquids.
    • OSHA specifies maximum container sizes for each category of flammable materials.
    • Container types include glass, metal (except DOT drums), and safety cans.
    • Maximum sizes (in gallons) vary by container type and flammable liquid category.
    • Container exemptions exist for medicines, beverages, food products, cosmetics, and common consumer items packaged according to standard practices.

    Storage Cabinets and Rooms

    • Flammable materials must utilize approved fireproof cabinets or storage rooms, with specific criteria set by 29 CFR 1910.106.
    • Cabinets must be labeled "FLAMMABLE – KEEP FIRE AWAY".
    • Metal cabinets must have at least 18-gauge sheet iron, double walls, and a 1.5-inch air space.
    • Doors must be at least 2 inches above the cabinet bottom.
    • Venting of flammable storage cabinets is allowed, but not always required. If not vented, appropriate bungs must be in place.
    • OSHA doesn't require grounding of cabinets. NFPA 77 does, and local fire codes/insurance companies may also require grounding.

    Storage Rooms

    • For larger quantities of flammables, special rooms designed for storage are necessary.
    • Key features for these rooms include electrically classified fixtures and wiring; high and low-point ventilation; fire-resistant walls and ceilings; blowout panels; methods for capturing spills; and 6 air changes per hour ventilation.
    • Aisles at least 3 feet wide must be present for room accessibility during an emergency.
    • Storage of containers exceeding 30 gallons in a single indoor storage room is not allowed.
    • Allowable quantities of flammable liquids inside storage rooms depend on the fire resistance rating of the room.

    Outside Storage

    • Outdoor storage areas for flammable liquids require adequate fire controls.
    • These include working hoses, portable fire extinguishers, and fire control devices.
    • At least one portable fire extinguisher with a 12-B rating must be present, within 10 feet of the room door and 10-25 feet from the storage area.
    • Up to 1,100 gallons of flammable liquids are permitted near a building, separated by a 10-foot space.

    Flammable Liquid Compatibility

    • Flammables should not be stored with oxidizing agents (chlorates, nitrates, perchlorates, permanganates, peroxides).
    • Flammables must also not be stored with corrosive materials (acids, bases).
    • Spontaneous heating/explosion hazards should be avoided.
    • Do not store flammables near heat sources.

    Electrical Protection

    • Be aware of the hazards of electricity around flammables.
    • Flammable materials must be at least 25 feet from ignition sources unless separated by a fire resistant barrier.
    • Wire and electrical fixtures around flammable liquids need to meet specifications in §1910 or National Electrical Code.
    • Containers of Category 1, 2, or 3 flammables with flash points below 100°F (37.8°C) require electrical interconnection (bonding) during transfer steps.
    • Grounding and bonding of containers are essential to prevent sparks.

    Hot Work

    • Hot work (welding, cutting, power tools) requires supervision by responsible personnel.
    • "Hot work" permits must be obtained before starting work in areas with flammable liquids.
    • The area must be cleared of combustible materials.
    • Fire watch is needed to monitor for potential issues.

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    Storage of Flammable Materials PDF

    Description

    This quiz covers the safe storage of flammable liquids, including regulations regarding designated storage areas, allowable amounts, and exceptions for incidental storage. Understand the different categories of flammable materials as classified by OSHA and learn best practices to ensure compliance and safety in your workplace.

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