About this item
These ashless papers are manufactured with 100% cotton linters. They are being washed with acid and cleaned with demineralised water to maintain its purity for quantitative analysis.
Grade 12: Medium fast filtration for very coarse precipitates such as lead, iron, silver sulphide, alcali carbonates, lead chromate, arsenic, antimony, cadmium and food stuffs.
Grade 14: Slowly filtering narrow pores filter paper used in fine precipitates such as lead dioxide, calcium fluoride, nickel sulphide, zinc sulphide, dioxide and molybdate of lead.
Grade 15: Very slowly filtering fine pores filter paper used for extremely difficult filtration conditions such as cold barium sulphate, metastannic acid and cuprous oxide.
Specifications
- Catalog No:
- FIOR0015A00012
- FIOR0012A00002
- FIOR0014A00002
- Grade:
- 15
- 12
- 14
- Weight:
- 84 g/m²
- 84 g/m²
- 84 g/m²
- Thickness:
- 0,14 mm
- 0,17 mm
- 0,15 mm
- Max. pore size:
- 3 µm
- 12 µm
- 5 µm
- Min. pore size:
- 2 µm
- 8 µm
- 3 µm
- Filtration speed:
- 180 s (DIN 53137)
- 20 s (DIN 53137)
- 100 s (DIN 53137)
- Wet burst strength:
- >0,20 kg/cm²
- <0,20 kg/cm²
- >0,20 kg/cm²
- Ash content:
- 0,007%
- 0,007%
- 0,007%
Specifications
Supplier: VWR Chemicals
Supplier: VWR Chemicals
Supplier: VWR Collection
Supplier: KIMBERLY CLARK
Supplier: VWR Collection
Supplier: VWR Collection
Supplier: VWR Chemicals
Supplier: Merck
Supplier: HEATHROW
Supplier: VWR Chemicals
Supplier: VWR Collection
Supplier: VWR Collection