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. 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 Büchner funnels and for filtration under vacuum. 
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Ashless filter paper for quantitative analysis

F2045 GRADE - Very fast filtration icons

F2041 GRADE - Fast filtration icons

F2043 GRADE - Medium filtration icons

F2040 GRADE - Medium-slow filtration icons

F2044 GRADE - Slow filtration icons

F2042 GRADE - Very slow filtration icons

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