Flammable or Combustible Liquids
Indoor Storage
Do not store flammable and combustible liquids indoors, except as follows:
- Store no more than 25 gallons in a room or single fire area.
Are these gas cylinders properly stored?
- Store no more than 60 gallons of Class I or II liquids, or more than 120 gallons of Class III liquids, in an approved cabinet. Locate no more than three such cabinets in a single fire area.
- You may store larger quantities in separated indoor storage areas when such storage meets the requirements of NFPA 30, Section 4-4, "Design, Construction, and Operation of Inside Storage Areas."
- Place at least one 2-A:40-B:C fire extinguisher 10 feet to 30 feet away from the stored material or cabinet.
- Place at least one 2-A:40-B:C fire extinguisher outside of, but not more than 10 feet from, the door opening into an inside liquid storage area.
Outdoor Storage
Do not store flammable and combustible liquids outdoors, except as follows:
- Above ground in approved containers with no more than 60-gallon capacity, subject to the following restrictions:
- The total capacity of any one group of containers stored together must not exceed 1,100 gallons. Each group of containers must be at least 5 feet apart, and each group must be at least 20 feet away from any building or other combustibles.
- Each group of containers must be adjacent to an access way at least 12 feet wide to facilitate the use of firefighting equipment.
- Above ground in approved portable tanks with no more than 660-gallon capacity, providing that you:
- Keep a 5-foot clear area around groups of two or more tanks with a combined capacity of more than 2,200 gallons.
- Keep portable tanks at least 20 feet away from any building or other combustibles.
- Equip portable storage tanks with emergency venting and other devices, as required in NFPA 30.
- Locate each tank adjacent to an access way at least 12 feet wide to facilitate use of firefighting equipment.
- Above ground in approved tanks installed in accordance with NFPA 30, Section 2-3, "Installation of Outside Above Ground Tanks."
- Dike storage areas at least 12 inches high or grade and slope them, and seal them with a 50-mil plastic compatible sheeting or equivalent liner to contain leaks and spills equal to the capacity of all tanks or containers in each area. Keep the area free from vegetation or combustible material within 10 feet of the storage area perimeter.
- Place at least one portable fire extinguisher unit rated not less than 2-A:40-B:C 25 feet to 75 feet away from each portable tank or group of tanks or containers.
Knowledge Check Choose the best answer for the question.
4-10. What is the maximum amount of flammable and combustible liquids in a room or single fire area?
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