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HomeLaboratory Filter PaperBoeco Quantitative FiltersQuantitative Filters - 389 - white spot

Quantitative Filters - 389 - white spot

Quantitative Filters - 389 - white spot

389 - white spot - medium fast filtering, medium wide pores, ashless hardened

quantitative ashless filter papers are recommended for quantitative analysis.
As quantitative analysis requires a high purity, these filters are being washed out with acid. 

Typical grade for quantitative tasks, coarser precipitates, such as

  • lead-iron
  • silver sulphide
  • alcali carbonates
  • food stuff and soil analysis
Basis Weight: 84 g/m2
Filtration velocity: 10 ml / 23 seconds
Typical Pore Size: 8 - 12 µm
Similar to: Whatmann 41, S&S 589/2, M-N 640m

Diam. Code Grade/Description Pack of
55 mm FTR 3.102.055 389 / Filter discs. White dot 100
70 mm FTR 3.102.070 389 / Filter discs. White dot 100
90 mm FTR 3.102.090 389 / Filter discs. White dot 100
110 mm FTR 3.102.110 389 / Filter discs. White dot 100
125 mm FTR 3.102.125 389 / Filter discs. White dot 100
150 mm FTR 3.102.150 389 / Filter discs. White dot 100
185 mm FTR 3.102.185 389 / Filter discs. White dot 100
240 mm FTR 3.103.240 389 / Filter discs. White dot 100

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