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Laboratory Filter Paper

Description
These CHM® filter papers are used for quantitative and qualitative analysis and designed for preparation of samples and gravimetric analysis. They are made of refined pulp and linters with virtually 100% of alpha-cellulose content. These filter papers are guaranteed free of possible residual acids used in some production methods. Extremely low percentage of ash content (maximum ash content of 0.007%). Ashless filter papers for quantitative analyses are suitable for Buechner funnels and for filtration under pressure.
Product list
Product list
Quantitative ashless filter paper

Quantitative ashless filter paper

These CHM® filter papers are used for quantitative analysis and designed for preparation of samples and gravimetric analysis. They are made of refined pulp and linters with virtually 100% of alpha-cellulose content. It is free of possible residual acids used in some production methods. Extremely low percentage of ash content (max 0.007%).
Qualitative filter paper

Qualitative filter paper

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.
General purpose filter paper

General purpose filter paper

These general purpose filters have a high wet strengthened.
They are made of high-purity cotton linters and other vegetable fibers. These filter papers have fast or very fast filtration rates, and are particularly useful in filtering coarse precipitates or relatively straightforward substances.
Phase separation paper

Phase separation paper

The CHM® P1000 hydrophobic paper separates aqueous from organic phases. The solvent phase allows passage through the organic phase while retaining the aqueous phase.
The process terminates when the entire organic phase has passed through the filter, thereby providing a clean, particle-free organic phase.
Surface protection

Surface protection

Coated paper prevents the covered surface from contamination. It is highly useful for recovery of valuable or toxic liquids and can be treated with disinfectants for use in clinical laboratories to prevent biological contamination.
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