What is the approximate range of a fire extinguisher?

What is the approximate range of a fire extinguisher?

The horizontal range of the dry chemical stream will reach a distance from 5 to 20 feet. How long will it take to use up 10 to 20 pounds of dry chemical? The approximate discharge time for 10 to 20 pounds of dry chemical ranges from 10 to 25 seconds.

How do I know what type of fire extinguisher I have?

Identifying fire extinguishers by colour

1. Foam extinguishers display a cream label. They’re most commonly used on Class B fires (started by flammable liquids).
2. Dry powder extinguishers display a blue label.
3. CO2 extinguishers feature a black label.
4. Wet chemical extinguishers feature a bright yellow label.

What information can be found on a fire extinguisher?

Most fire extinguishers will have a pictograph label telling you which classifications of fire the extinguisher is designed to fight. For example, a simple water extinguisher might have a label like the one below, indicating that it should only be used on Class A fires.

What is the maximum discharge time of a CO2 fire extinguisher?

6 seconds
The discharge time of a CO2 fire extinguisher is only 6 seconds, so the extinguisher is used only to fight a fire when it is still restricted to an electric item, such as a computer.

What is a disadvantage of carbon dioxide fire extinguishers?

Disadvantages Of Carbon Dioxide Extinguishers As CO2 works by displacing the oxygen around the fire, it is not suitable for outdoor use, or in environments exposed to windy conditions. CO2 is a high pressured extinguisher. Using it on class A fires or class F fires could cause the fire to spread.

How can you tell if a fire extinguisher is CO2?

You can recognize a CO2 extinguisher by its hard horn and lack of pressure gauge. The pressure in the cylinder is so great that when you use one of these extinguishers, bits of dry ice may shoot out the horn. CO2 cylinders are red and range in size from 5 lbs to 100 lbs or larger.

What should you not use a CO2 fire extinguisher on?

Dangers: CO2 extinguishers should not be used on fires involving solid materials, such as paper, wood and fabric, and also are not suitable for use on flammable gases. How it works: The CO2 works by cutting off the fire’s oxygen supply. This then smothers it and, as it does so, extinguishes the flames.

When should a CO2 fire extinguisher be used?

CO2 extinguishers are ideal for places with a lot of electrical equipment such as offices or server rooms because they are safe to use on fires involving electrical apparatus. Carbon dioxide extinguishers do not leave any residue, unlike a foam extinguisher.

How do you dispose of fire extinguisher powder?

Powder. You must dispose of a powder fire extinguisher professionally. You can do this by taking it down to your local recycling center where they will be able to dispose of it for you. As an alternative, you can take yours to a Household Hazardous Waste collection site (HHW).

How often do you check fire extinguishers?

Extinguishers need to have an internal examination conducted at anywhere from 1-6 year intervals depending on the type of extinguisher. For example, a dry chemical, stored pressure fire extinguisher must have an internal examination every 6 years, see NFPA 10 Table 7.3.

How should CO2 be applied to a fire?

CO2 displaces the oxygen to extinguish the fire. When the CO2 gas is released from the extinguisher it looks like dry ice. This “cloud” of CO2 reduces the oxygen in the air around the fire and smothers it.

What can CO2 fire extinguishers not be used on?

Dangers: CO2 extinguishers should not be used on fires involving solid materials, such as paper, wood and fabric, and also are not suitable for use on flammable gases.

When should you not use a CO2 fire extinguisher?

CO2 fire extinguishers are mainly aimed at electrical fires but are also suitable for Class B liquid fires and are used in different ways depending on the type of fire they are being used on. Do not use CO2 extinguishers in small rooms as CO2 gas is poisonous at only 4% concentration and can kill at just 8%.

When would it be dangerous to use a CO2 fire extinguisher?

Carbon dioxide fire extinguishers, when used in the right circumstances can save lives. However, it would be dangerous to use a carbon dioxide fire extinguisher when dealing with flammable gases, cooking oils and fats, or in a confined space.