Grade 11 qualitative filter paper from Camlab Filters, equivalent to grade 41 for fast filtering applications Quantitative filter paper, 12-15µm particle retention, diameter. 185mm
Wide pore filter paper used for coarse and voluminous precipitates such as iron - aluminium - and chromium hydroxide or Si determination in steel and pig iron analysis. Our ashless quantitative filter papers are made with 100% cotton linters. As quantitative analysis requires a high purity paper these are washed out with acid and finally cleaned with demineralised water. The ash content is 0.007%