The production date and expiration date are on the barrel of each fire extinguisher. Watch the expiration date to see if the fire extinguisher has expired.
Whether the fire extinguisher is used or still used, it should be sent to the maintenance unit for maintenance after the production date (the production date of each cylinder of the fire extinguisher). After the specified maintenance period, it must be sent to the maintenance unit for repair. Fire extinguishers that fail the cylinder hydrostatic pressure test must also be scrapped.
If the pointer points to the green area, it means that the pressure inside the fire extinguisher is normal and can be used normally. It can be seen that the green area is the narrowest part of the three areas of red, green and yellow. If the pointer points to the yellow area, it means that the pressure inside the fire extinguisher is too high to be used, but there is a risk of explosion.
At this point, I would like to remind everyone that you should not assume that fire extinguishers are completely safe. In fact, as long as it is a sealed container, if the internal air pressure is too high, there is a risk of explosion, such as various gas cylinders, such as oxygen bottles, oxygen bottles, acetylene bottles, etc. Exposure to sunlight can cause the cylinder to over-pressure and explode.
Extended information:
1. When transporting and storing fire extinguishers, avoid falling, raining, exposure to sunlight, strong radiation and contact with strong substances.
2. The storage environment temperature of fire extinguishers should be within the range of -10-45℃.
3. The place where the fire extinguisher is placed should be kept dry and ventilated to prevent the cylinder from getting wet and corroding. Direct sunlight and strong radiant heat should be avoided to avoid affecting the normal use of the fire extinguisher.
4. Fire extinguishers should be inspected regularly in accordance with the requirements and inspection cycles specified by the manufacturer.
People's Daily Online - Mastering the use of fire extinguishers is crucial to putting out the first fire