How can you determine if the fire extinguisher is unsafe?
The most common indicator that everyone can check is the pressure gauge. There would be a green zone between two red ones. If the indicator is in either of those red zones, your fire extinguisher needs immediate service. You can also check for safety pin.
What would be the reason if a fire extinguisher is not functioning?
Blocked or Worn Out Hose To function correctly, the extinguishing agent must be able to freely flow from the tank to the flames. However, if the hose is blocked, the extinguishing agent cannot be properly discharged.
What do the signals on a fire extinguisher indicate?
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.
When should you inspect a fire extinguisher?
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.
What is done when a fire extinguisher is serviced?
The process of internal maintenance testing consists of a complete discharging of the fire extinguisher. The extinguisher is examined internally and recharged to make sure it is working properly. Dry chemical type extinguishers require a six-year internal examination and a 12-year hydrostatic test.
Do you need to turn a fire extinguisher upside down?
Extinguishers should be maintained by being turned upside down and shaken every six months to ensure the powder is not built upon the bottom. And that if you have to use the extinguisher, the powder will flow through the nozzle and not just air.
How do you make sure fire extinguisher is properly maintained?
Fire extinguishers should be maintained at regular intervals (at least once a year), or when specifically indicated by an inspection. Maintenance is a “thorough check” of the extinguisher. It is intended to give maximum assurance that an extinguisher will operate effectively and safely.
How often do fire extinguishers need to be hydrostatically tested?
once every 12 years