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What are the test methods for efficient filters ??? From Britain,China,Some countries in Europe 70-Implemented in 1990s.The source of the test dust is sodium chloride salt spray.'Quantity' is the light intensity of the hydrogen flame characteristic light when it contains salt spray.The main test instrument is a luminosity meter.Salt water splashed under the stirring of compressed air,Dry to form a tiny salt spray and enter the air duct.Sampling before and after the filter,The salt mist samples blue and increase the brightness of the hydrogen flame.Judging the salt spray concentration of air by flame brightness,And then determine the filter efficiency of the filter for salt spray.Relevant standards: GB6165-in China-85,At present, relevant domestic departments are revising the standard,Whether to abolish or continue to be inconclusive.The method is no longer used in Europe.Original West Germany,The Soviet Union,And China has adopted this method.The source of dust is oil mist.The 'quan
Can activated carbon filter sulfuric acid? Activated carbon is a black powder,Granular or pill-like amorphous with porous carbon,Carbon is the main ingredient,It also contains a small amount of oxygen, hydrogen, sulfur, nitrogen and chlorine.It also has fine structures like graphite,It's just that the grain is small,Irregular accumulation between layers.Large surface area (500 ~ 1000 m 2/g ),Has a strong adsorption performance,It can absorb gas, liquid or colloidal solids on its surface;For gas, liquid,The quality of the adsorption substance can be close to the quality of the activated carbon itself.Its adsorption is selective,Non-polar substances are easier to absorb than polar substances.In the same series of substances,The higher the boiling point, the easier it is for substances to be adsorbed,The greater the pressure, the lower the temperature, the greater,The larger the adsorption capacity.On the contrary,Decompression,Heating is conducive to the adsorption of gases.It is commonly used in the adsorption
