Safe Storage of Flammable Liquids: NFPA 30 Regulations

a variety of flammable liquid cans

Flammable liquids pose a serious risk to people and property, which is why the NFPA 30 regulations were created. These regulations provide guidelines for the safe storage and handling of flammable liquids, and it is important for businesses to comply with these regulations to prevent accidents and ensure the safety of their employees and the environment.

Key Requirements of NFPA 30

To comply with NFPA 30 regulations, businesses must ensure that their storage facilities meet certain requirements, including:

  • Flammable liquids should be stored in approved containers and cabinets that are designed to prevent leaks and spills.
  • Storage areas should be well-ventilated to prevent the buildup of flammable vapors.
  • Storage areas should be located away from ignition sources and heat-producing equipment.
  • Smoking and open flames should be prohibited in storage areas.
  • Storage areas should be equipped with fire suppression and detection systems.
  • Employees should be trained on the proper handling and storage of flammable liquids.

Types of Flammable Liquids

There are four classes of flammable liquids based on their flashpoint, which is the minimum temperature at which a liquid gives off enough vapor to ignite. The four classes of flammable liquids are:

  • Class IA - flashpoint below 73°F (22.8°C)
  • Class IB - flashpoint below 73°F (22.8°C) and a boiling point below 100°F (37.8°C)
  • Class IC - flashpoint at or above 73°F (22.8°C) but below 100°F (37.8°C)
  • Class II - flashpoint at or above 100°F (37.8°C) but below 140°F (60°C)

Safe Storage Guidelines for Flammable Liquids

To ensure safe storage of flammable liquids, businesses should follow the guidelines below.

1. Use Approved Containers and Cabinets

Flammable liquids should be stored in approved containers and cabinets that are designed to prevent leaks and spills. Containers should be tightly sealed and labeled with the contents and hazard warning. Cabinets should be well-ventilated, and their capacity should not exceed 60 gallons of Class I or Class II liquids, or 120 gallons of Class III liquids.

2. Keep Storage Areas Well-Ventilated

Storage areas should be well-ventilated to prevent the buildup of flammable vapors. Ventilation can be achieved through natural or mechanical means, such as fans or exhaust systems. Storage areas should also be kept cool to reduce the risk of ignition.

3. Store Flammable Liquids Away from Ignition Sources

Storage areas should be located away from ignition sources and heat-producing equipment, such as heaters or electrical equipment. Flammable liquids should also be kept away from traffic areas, and smoking and open flames should be prohibited in storage areas.

4. Equip Storage Areas with Fire Suppression and Detection Systems

Storage areas should be equipped with fire suppression and detection systems to quickly detect and extinguish fires. Fire extinguishers should be readily available and easily accessible.

5. Train Employees on Safe Handling and Storage

Employees should be trained on the proper handling and storage of flammable liquids, including the use of personal protective equipment (PPE) and emergency procedures. Training should be conducted regularly to ensure that employees are aware of the risks and hazards associated with flammable liquids.

Safe storage of flammable liquids is critical to prevent accidents and ensure the safety of employees and the environment. By following the guidelines and best practices outlined in this article, businesses can comply with NFPA 30.


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Herbert Post

Born in the Philadelphia area and raised in Houston by a family who was predominately employed in heavy manufacturing. Herb took a liking to factory processes and later safety compliance where he has spent the last 13 years facilitating best practices and teaching updated regulations. He is married with two children and a St Bernard named Jose. Herb is a self-described compliance geek. When he isn’t studying safety reports and regulatory interpretations he enjoys racquetball and watching his favorite football team, the Dallas Cowboys.