Standard quality filter papers for fine precipitates. Increased filter surface area increases overall loading capacity and reduces overall filtration time. Reduced contact between filter and funnel maintains flow rate. Elimination of quadrant filter rings for conical funnels saves time during repeated or multiple analyses. Prepleated filters have the same technical properties as the respective filter circles. Cellulose filters are used in qualitative analytical techniques to determine and identify materials. Preformed qualitative filters result in improved flow rate and increased loading capacity compared to equivalent pleated quadrant filters.Meer tonenMinder tonen