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                               中国药典筛与工业用筛及筛孔内径对照

                  药典筛号               工业用筛(Mesh)               筛孔内径(µm)
                   一号筛                    10                    2000±70
                  二号筛                    20                   850±29
                   三号筛                    50                    355±13
                   四号筛                    60                     250±9.9
                  五号筛                    80                     180±7.6
                   六号筛                    100                   150±6.6
                  七号筛                    120                    25±5.8
                   八号筛                   140                   90±4.6
                  九号筛                    200                    75±4.1
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