Characteristics and Selecting Factors of Filter Paper


Usually, there are four major properties for customers to choose their suitable filter papers. The chart has been summarized below.

CharacteristicRelated Principle
HardnessThe filter paper can become wet in the filtering procession, so some experimental steps with a long time should consider the tougher filter paper after its wetness.
Filtration efficiencyThe density and size of the pore on the filter paper all impact the filtration efficiency that shows in fast filtering speed and high resolving ability.
CapacitySolid particles can be accumulated during filtration and block small holes on the paper, so the denser the pore is, the higher the capacity would be.
ApplicabilitySome filter papers are manufactured according to especially given steps, such as the use of nitrogen-free filter paper in the determination of blood nitrogen content of pharmaceutical products.