Whatman Quantitative Filter Paper Grade 40

Typical applications include gravimetric analysis for numerous components in cements, clays, iron and steel products; as a primary filter for separating solid matter from aqueous extracts in general soil analysis, quantitative determination of sediments in milk and as a pure analytical grade clean-up filter for solutions prior to AA spectrometry. Used also as a high-purity filter in the collection of trace elements and radionuclides from the atmosphere.