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Activated carbon filter element quality evaluation method
We all know that the activated carbon filter element can play the role of purifying the air, so many people buy it. However, due to the large number of manufacturers of activated carbon filter elements on the market, the quality of the products is also uneven. We need to buy them. Check it out so that we can ensure that the activated carbon filter element we purchased can play its due role. So is there any good way to check the effect of the activated carbon filter element? Please tell us about it.
Activated carbon filter element filter efficiency detection method: sodium flame method
The test method originated mainly in the UK and it is currently one of the standard test methods being used in China. When the sodium flame method is used to detect the filtration efficiency of the activated carbon filter element, sodium chloride salt spray is usually used as the test substance, and the salt mist concentration in the air is judged according to the color of the salt mist combustion, thereby further determining the activated carbon filter. Filter filter efficiency. At the time of testing, we will find that the brine will splash due to the agitation of the compressed air. After drying, the particles will form as the air enters the activated carbon filter element.
Activated carbon filter element filter efficiency detection method: oil mist method
The detection method of the filter efficiency of the activated carbon filter element is mainly derived from Germany, and currently the method is used in China to measure the presence or absence of dust. The oil mist method mainly detects the degree of air pollution entering the inside of the activated carbon filter element, and judges the filtration efficiency of the activated carbon filter element. Different companies have different methods for testing dust. Paraffin oil is usually used in Germany, and the oil mist weight measured in China is within 0.28~0.34micro. There is not much demand standard for oil mist.
Activated carbon filter element filter efficiency detection method: particle counting method
This method should be the most familiar detection method, and it is the mainstream filtration method for the filtration efficiency of activated carbon filter. The test dust of this method is dispersed or some fixed particle size dust, which is measured by a large flow laser particle counter. If there is a problem with the test dust during the measurement process, be sure to even disperse it to ensure the normality of the measurement.
The above three methods for testing the quality of activated carbon filter cartridges are simple and feasible, and you can choose according to different situations.