What does 20B mean on a fire extinguisher?

The Class B size rating indicates the square footage the extinguisher can cover. 20B means that as long as you sweep the nozzle side to side, there is enough extinguishing agent inside the canister to provide 20 square feet of coverage. There is no size rating for Class C.

What do fire extinguisher numbers mean?

The number indicates the relative size of the extinguisher, and the letter indicates the type of fire it will extinguish. … On Type A extinguishers, the number relates to how many gallons of water the extinguisher is equal to for a Type A fire. Type B fires are of flammable liquids such as gasoline or oil.

What is the difference between a B1 and B2 fire extinguisher?

You can use water, or a Class A fire extinguisher, to put out this type of fire. Class B fires, on the other hand, have a flammable liquid fuel source, like gasoline. … The number after the B, for example a B1 or B2 extinguisher, indicates the capacity of the extinguisher.

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What is fire rating 21B?

Fire Rating. 8B. 13B. 21B. Suitable for Fire class B,C.

How do you read a fire extinguisher when it expires?

You can tell when a fire extinguisher expires by looking at the year and month punched on the tag. The extinguisher expires one year after the date indicated on the tag. The expiration date can be found at the bottom of the fire extinguisher tag.

What does 4A 80B C mean?

Amerex B456 – 10 lb ABC Fire Extinguisher 4A:80B:C

ABC or Multi-Purpose Fire Extinguishers can be used on Class A, B, or C fires. Class A: Wood, Paper, cloth, trash, plastics (solids that are not metals). Class B: Flammable Liquids-Gasoline, oil, grease, acetone (includes flammable gases).

How do you read a fire extinguisher number?

Each whole number increase in the rating increases the panel dimensions by 2 feet. The number before the B indicates the area of the liquid spill, which is burning, that the extinguisher can extinguish. A 1B rating would extinguish a 2.5 square foot liquid fire and a 2B would extinguish a 5 square foot liquid fire.

What is AB 11 fire extinguisher?

Class B: Flammable Liquids-Gasoline, oil, grease, acetone (includes flammable gases).

What size is a b1 fire extinguisher?

B-1 Extinguishers are USCG approved and meet the need for a Type B, Size 1 USCG approved Fire Extinguisher.

What is in a halotron fire extinguisher?

Halotron I is a fire extinguishing agent based on the raw material HCFC-123 (93%) mixed with tetrafluoromethane and argon as propellants.

What is 13B fire extinguisher?

The number of the fire test is the total amount of litres in the fuel tray, so a 13B fire is 13 litres, whilst a 233B is 233 litres. A class B test will consist of varying sizes of trays and the amount liquid containing the tray is split in two parts, two parts heptane to every one-part water.

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What is fire rating 21a?

Showing 1 to 1 of 1 products. All manufactured from high tensile steel bodies with brass valves. Unique safety feature of self locking levers to prevent accidental use.

What is class fire rating?

Fire class ratings are a way of classifying materials by their ability to support and propagate fire and also indicate the smoke produced by the material. This is determined by a flame spread index.

How can you tell if a fire extinguisher is good?

Most fire extinguishers should have a pressure gauge with a red section and a green section. If the needle is in the green, you’re good. If your extinguishers don’t have a pressure gauge and you want to test them, press in the pin. If it pops back up, the extinguisher is pressurized.

How long does a 5 pound fire extinguisher last?

As a rule of thumb, extinguishers typically last 5 to 15 years.

What should I look for when inspecting a fire extinguisher?

Examine the extinguisher for obvious physical damage, corrosion, leakage, or clogged nozzle. Confirm the pressure gauge or indicator is in the operable range or position, and lift the extinguisher to ensure it is still full. Make sure the operating instructions on the nameplate are legible and facing outward.