Quantitative filter paper BRANCHIA without ash, medium/low speed

Ashless paper (<0.007%) made with cotton fibers for medium-speed filtration. Used for gravimetric analysis for numerous components, as well as all types of pre-filtration. Suitable as a primary filter for the separation of solids and fine precipitates from aqueous extracts, soil analysis and quantitative determinations of fats and oils in water, sediments in milk and solution cleaning for AAS (Atomic Absorption Spectrophotometry). Grammage 85 g/m², thickness 170 m, filtration time 100 s, retention 7 – 9 μm, wet burst strength >30 kPa. Available in discs (presented in packs of 100 discs per box). Equivalent: Whatman 40