How to judge the filtering effect of PTFE filter bag?

How to judge the filtering effect of PTFE filter bag?
PTFE filter bag is a common filter material, and its filtering effect can be judged and evaluated through the following aspects:
1. high efficiency filtration: PTFE filter bag has excellent high efficiency filtration performance, which can effectively filter small dust particles. The number of particles in gas and liquid before and after filtration can be compared by using particle counter and other equipment, so as to evaluate the filtration effect of PTFE filter bag.
2. high permeability: PTFE filter bag has high permeability and can pass through gas or liquid quickly. The permeability and filtration effect of PTFE filter bag can be evaluated by measuring the flow rate through the filter bag. The faster the flow rate, the smaller the resistance, and the better the filtration effect.

3. high collection efficiency: PTFE filter bag can efficiently capture particles and prevent them from re entering gas or liquid. The collection efficiency of PTFE filter bag can be evaluated by observing and analyzing the particles on the surface and inside of the filter bag. The less the particles, the better the filtering effect of the filter bag.
4. long term use: PTFE filter bags have long service life and are not easy to be damaged. It can be concluded that the PTFE filter bag has good durability and stable filtering effect by evaluating the length of service time of the filter bag and will not be damaged for a long time.
5. chemical resistance: PTFE filter bag has excellent chemical resistance and is not easily affected by acid, alkali and other corrosive substances. The chemical resistance and filtration effect of PTFE filter bags can be evaluated by exposing them to various acid and alkali solutions and observing whether they are corroded.
In summary, the filtration effect of PTFE filter bag can be evaluated from many aspects, such as high efficiency filtration, high permeability, high collection efficiency, long-term use and chemical resistance. These assessment methods can provide reference, but the final assessment results need to be comprehensively considered in combination with the specific use environment and needs.