Sand core filter bottles are an important part of laboratory filtration, and many customers often encounter cleaning problems when using sand core filter bottles. Sand core filter bottles are often used in the production process because the core gaskets supporting the filter are often fused with the glass filter bottles and cannot be separated. This filter gasket is prone to discoloration, clogging, etc. after prolonged use. Customers are required to perform regular cleaning operations. However, since the filter gasket cannot be separated from the bottle body, the cleaning becomes less easy, and it is easy to draw the glass surface using a tool such as a brush, and it is also impossible to clean the inside and the other side of the filter gasket, in other words, cannot be done. To thorough cleaning. For the rest of the customers, such as ink (color is very easy to contaminate the filter gasket), suspended solids in water, microbial limit inspection, medium sterilization, cleanliness detection filtration or other raw material sample filtration, you can use plastic or stainless steel filter. Gasket, this material is very convenient for daily cleaning. For example, sciencetool's R300A vacuum suction filter device, the standard funnel is made of all-plastic material, light and resistant to falling and can be autoclaved at the same time, while the filter gasket part is plastic mesh, and the grid spacing is large. Cleaning, and at the same time, when necessary, the filter gasket can be removed and cleaned separately, which is more convenient. Powder Spice Five,Spice Powder Five,Spices Powder Five,Mix Powder Five Spice jiangmen city hongsing food co., ltd. , https://www.jmhongsing.com
The conventional cleaning methods mainly include the following:
Soaking with an acidic solvent: The advantage of this is that the particles that are clogged in the filter gasket can be melted, but the problem of discoloration of the filter gasket is not possible, and there is no way to effectively improve it. And the effect of cleaning is also uncertain.
High-pressure water gun flushing: Through the strong water pressure, the particles that are blocked in the filter element are flushed out, but the effect of this method is effective.
Ultrasonic cleaning machine cleaning: It is also a physical cleaning method, which is better than high pressure water gun cleaning, but has no effect on color contaminated filter elements. At the same time, the customer needs to purchase the device.
In summary, the various methods of cleaning the filter core have certain limitations. Once the filter element is contaminated, it cannot be restored to the factory performance. Therefore, in general, customers are advised to purchase according to the actual use requirements. Customers who must use sand core glass materials should purchase them. Other customers should try not to use this material. 
Compared with its material, sand core glass has the greatest advantage of being resistant to organic solvents and chemical corrosion. For example, when filtering various chromatographic flows relative to solvents for purification and filtration, filtration of plating solutions, etc., it is possible to use models with all-glass materials and filter gaskets as sand core glass, such as EC-1 (300ml filter cup + 1000ml set). Liquid bottle), EC-2 (500ml filter cup + 2000ml liquid collection bottle). 
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Cleaning method and selection knowledge of sand core filter bottle gasket
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