What do the symbols on fire extinguishers mean?
Extinguishers are classified by a number and letter symbol. The number indicates the relative size of the extinguisher, and the letter indicates the type of fire it will extinguish. On Type B extinguishers, the number tells you the square footage of the fire the extinguisher can put out.
What are the 5 types of portable fire extinguisher?
There are five main types of fire extinguishers used on ships:
- Soda Acid Fire Extinguisher.
- Water Extinguisher.
- Foam Extinguisher – Chemical and Mechanical.
- Carbon Dioxide Extinguisher.
- Dry Powder Extinguisher.
What does the number rating on an A portable fire extinguisher signify?
Fire Extinguisher Size Ratings The Class A size rating represents the water equivalency. Each number represents 1 ¼ gallons of water. For instance, 2A means the extinguisher is just as effective as 2 ½ gallons of water.
How do you read a fire extinguisher?
The left side top number is the serial number of the extinguisher. Below the number will be a name and number stamp. The name should read the first and last name of the person who conducted the service. That technician’s state id number is located below the name.
How do I identify a portable fire extinguisher?
According to NFPA, extinguishers suitable for Class A fires should be identified by a triangle containing the letter “A.” If in color, the triangle should be green. Class B fire extinguishers are used for flammable liquid and gas fires such as oil, gasoline, etc.
How will portable fire extinguishers be marked?
How will portable fire extinguishers be marked? Portable fire extinguisher may use the following markings to indicate which class of fire they are designed to fight. These symbols are recommended by the National Fire Protection Association (NFPA) in the USA. The symbols may be shown using colours.
What does the number on the bottom of the fire extinguisher mean?
The rating number that indicates the extinguishing capability, information on how much dry chemical should be in the fire extinguisher, and the suitable temperatures in which the agent will operate are on the label, as shown in the Photos 2, 2a, and 2b below.
What do the symbols on a fire extinguisher indicate?
Extinguishers are marked with pictograms depicting the types of fires that the extinguisher is approved to fight . In the past, extinguishers were marked with colored geometric symbols, and some extinguishers still use both symbols.
What are Class B fire extinguishers?
Type B Fire Extinguishers- Class B extinguishers are used to fight small fires based on flammable liquids. These liquids include gasoline, kerosene, oil, and oil based paints making this type of fire extinguisher perfect for use in your garage. Class B fire extinguishers also have a number,…
What are the four types of fire extinguishers?
There are four classes of fire extinguishers – A, B, C and D – and each class can put out a different type of fire.
What type of fires are fire extinguishers meant to extinguish?
An ABC fire extinguisher is designed to suppress small Class A, B and C fires. These are the three most common types of household fires. Class A fires are fires that are fueled by common combustible materials such as wood, paper, plastic, cloth and rubber.