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Qualitative and quantitative filter paper can be classified into two types. In the application of analytical chemistry, when chemical compound after passing through the filter to separate out precipitates, collect in the residue on the filter paper, can be used as anexperimentin the course of the wastage rate. Qualitative filter paper filtered more cotton fibers and therefore applies only to qualitatively; filter paper, in particular the level of ash-free filter paper after special treatment procedures, and can effectively resist chemical reactions, so fewer impurities generated, can be used for quantitative analysis. In addition to General laboratory filter paper, lives and works on the filter paper is used a lot. Coffee filter is one of the widely used filter paper, tea bag outer filter provides high flexibility and high wet strength characteristics. Other tests of suspended particulates in the air air filter paper, and different industrial applications of fiber filter paper, and so on.
Update time：20151031111937
