In the industry liquid-solid filtration and separation, there are various kinds of micron filter bags for bag filter vessel, it should be chosen upon the fluid type.
First, confirm the chemical composition of the filtered fluid, find the usable filter media according to the chemical property.
Second, evaluate the temperature, operating pressure, PH value, viscosity, particle type (hard or soft), impurity concentration, working condition (tenable steam, hot water or chemical sterilization etc.), remove the inapplicable. Usage is considered as well, for example, the filter media for pharmaceuticals, food or cosmetics must be FDA compliant, and filter media for ultrapure water must be pure materials which do not contain free fiber.