Quantitative Filter Paper: Using the filter paper body and the ability to retain solid particles, the liquid and solid are separated, and the fine precipitates encountered in analysis can be retained. Filtration Speed: Medium-speed quantitative filter paper, commonly used in qualitative analytical techniques to determine and identify materials Material: High-quality pulp is manufactured through multiple industrial processes, almost free of impurities, and can be accurately quantitatively analyzed Wide Use:Covers a wide range of laboratory applications such as clarifying liquids, but can also be used to collect large particles in fast-moving air, detect food industry, agriculture, air pollution and gases