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- For quantitative analysis
- For quantitative analysis grade 589/1
- For quantitative analysis grade 589/5
- For quantitative analysis grade 589/3
- For quantitative analysis grade 589/4
- Quantitative analytical ash-free filters
- For qualitative analysis
- For qualitative analysis grade 604
- For qualitative analysis grade 595
- For qualitative analysis grade 602eh
- Qualitative analytical filters, fast filtration
- Qualitative analytical filters, slow filtration
- For general laboratory work
- Grade 0905, creped
- Grade 0857, grained
- Grade 0903, smooth.
- Filter paper reams
- Analytical disc filters
- Glass fiber filters
| Filter papers for qualitative analysis. They consist of super-refined cellulose and cotton. Untreated, not acid-washed; for general laboratory work. Low ash content <= 0.1%. Smooth surface. Grades differ in their weight per unit area and filtration speed. The filtration time and speed are an indirect measure for the retention capability; the retention capacity applies at the start of the filtration. |  |
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