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What standards are followed during electrical appliance suppliers production?
2019-08-01
Dongguan EDS Electronic Technology Co., Ltd has developed the business in a brand-new way and has won many honorary qualifications in the industry. Now we enjoy a large influence in the industry. EDS is located in the area with traffic convenience, which is good for timely delivery of the products. EDS could customize comprehensive and efficient solutions according to customers' different needs. EDS is expert in providing ODM services.
Ultra-filtration water purifier, under what circumstances do you need to add pp cotton pre-filter? At present, the ultra-filtration water purifier on the market is basically Grade 4, pp cotton-front activated carbon-ultra-filtration membrane-rear activated carbon. Generally speaking, the first two grades are pre-treated. First, the particles with larger diameter are filtered out, and then further processed to the UF Membrane. Finally, the rear activated carbon is used to improve the taste. The 4-stage filtration can extend the life of the water purifier very well. regardless of the water quality, it is recommended to add a pre-filter before the UF membrane. The water source is poor. when it is hoped to protect the service life of the UF membrane for a longer period, the front filter can be added. Generally, the main effect of PP cotton and activated carbon pp cotton is to remove large particles of sediment and rust, if there is a large amount of sediment, rust and other visible impurities in the water, it is
High School, chemistry, filtration or filtration belong to decompression filtration. it is not suitable for the separation of rubber-like precipitation and water. Please answer in detail. thank you! (23:51:14) Two, decompression filtrationPrinciple: the pumping pump decompresses the suction bottle, resulting in a difference in pressure between the bottle and the liquid level of the brandfunnel, thus speeding up the filtration speed.Operation steps: 1. install the instrument, put the filter paper into the bringer funnel, moisten the filter paper with distilled water, slightly open the faucet, and draw the filter paper to cling to the funnel porcelain board.2. transfer the solution first by tilting method, open the large faucet, and transfer the precipitation when the solution flows fast.3. when the liquid level in the suction filter bottle reaches the position of the branch pipe, unplug the rubber tube on the suction filter bottle and pour out the solution from the upper mouth of the suction filter
Ultra-filtration water purifier, under what circumstances do you need to add pp cotton pre-filter? At present, the ultra-filtration water purifier on the market is basically Grade 4, pp cotton-front activated carbon-ultra-filtration membrane-rear activated carbon. Generally speaking, the first two grades are pre-treated. First, the particles with larger diameter are filtered out, and then further processed to the UF Membrane. Finally, the rear activated carbon is used to improve the taste. The 4-stage filtration can extend the life of the water purifier very well. regardless of the water quality, it is recommended to add a pre-filter before the UF membrane. The water source is poor. when it is hoped to protect the service life of the UF membrane for a longer period, the front filter can be added. Generally, the main effect of PP cotton and activated carbon pp cotton is to remove large particles of sediment and rust, if there is a large amount of sediment, rust and other visible impurities in the water, it is
High School, chemistry, filtration or filtration belong to decompression filtration. it is not suitable for the separation of rubber-like precipitation and water. Please answer in detail. thank you! (23:51:14) Two, decompression filtrationPrinciple: the pumping pump decompresses the suction bottle, resulting in a difference in pressure between the bottle and the liquid level of the brandfunnel, thus speeding up the filtration speed.Operation steps: 1. install the instrument, put the filter paper into the bringer funnel, moisten the filter paper with distilled water, slightly open the faucet, and draw the filter paper to cling to the funnel porcelain board.2. transfer the solution first by tilting method, open the large faucet, and transfer the precipitation when the solution flows fast.3. when the liquid level in the suction filter bottle reaches the position of the branch pipe, unplug the rubber tube on the suction filter bottle and pour out the solution from the upper mouth of the suction filter
