Steps For Operation Of Filter Paper
The specifications are important data for reference when using filter paper in the laboratory. Considering about the applicability, some filter paper is processed by special production procedures.
For example, when testing nitrogen content in blood in the application of medicine inspection, nitrogen-free filter paper must be used. When referring to capacity, because solid particles which are collected during the process of filtration will block the micropore on filter paper, the more intensive the micropore is, the higher the capacity the filter paper has.
On the other hand, there are two key specifications of filter paper. One is filtration features; another is physical properties. Specifically, filtration features include air permeability, airlock, the maximum diameter of micropore and average micropore size. Physical properties include fixing quantify, thickness, deflection, depth of the corrugated, bursting strength, resin content, and so on.
In detail, fix quantify refers to the mass per square meters of filter paper. Thickness refers to the thickness of filter paper excluding the depth of the corrugated. Airlock refers to the resistance of filter paper to the airflow. Air permeability refers to the air amount per unit time under certain areas and certain pressure. Deflection refers to the non-deformability of filter paper.