Quantitative filter papers are used for gravimetric analyses or filtrations where the precipitate is to be recovered.

• Range of porosity available for filtering out precipitates
• Flow rate varies between models

Sargent-Welch Quantitative

VWR® Grade #494
Porosity: Fine - Ashless
Flow Rate: Slow
Particle Retention: 1 μm
Applications: Useful for very fine precipitates. Ideal for BaSO₄, PbSO₄, SnS2, NiS, CaOH₂

VWR® Grade #474
Porosity: Medium - Ashless
Flow Rate: Medium
Particle Retention: 5 to 10 μm
Applications: For general quantitative analysis. Ideal for the filtration of AlPO₄, ZnNH₄PO₄, Ag₂CrO₄