GVS Qualitative Filter Paper Grade 02 Medium-Slow; 7-8um Retention; 185mm Diameter

These filter papers are used for qualitative analysis. Qualitative filters are made of refined pulp and pure cotton linters with an alpha-cellulose content of nearly 100%, which gives them a number of diverse filtration properties. The ash content of less than 0.06% is not reduced by post-treatment.

• Grade 02 medium-slow filtration: slightly more retentive and absorbent than Grade 01 and therefore with a moderate to slow filtration speed. In addition to general filtration Grade 02 is used for monitoring specific contaminants in the atmosphere, filtration of fine precipitates, soil testing, it is often used as a folded filter in an analytical funnel.
• Applications: Monitoring specific contaminants in the atmosphere; Filtration of fine precipitates such as lead dioxide, calcium fluoride, nickel sulphide and zinc sulphide; Soil analysis