国产成人剧情AV果冻传媒

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          The mean diameters of macrogrits shown in the table are estimated and for information only, the FEPA "F" standard defines them as a range and not a single value.

           

          MACROGRITS

           

          MICROGRITS

          Grit designation

          Mean
          Diameter
          in µm

           

          Grit
          Number

          Mean
          Diameter
          ds 50 µm

          F4

          4890

           

          F230

          53.0 ± 3

          F5

           4125

           

          F240

           44.5 ± 2

          F6

           3460

           

          F280

             36.5 ± 1.5

          F7

           2900

           

          F320

             29.2 ± 1.5

          F8

           2460

           

          F360

             22.8 ± 1.5

          F10

           2085

           

          F400

          17.3 ± 1

          F12

           1765

           

          F500

          12.8 ± 1

          F14

           1470

           

          F600

          9.3 ± 1

          F16

           1230

           

          F800

          6.5 ± 1

          F20

           1040

           

          F1000

              4.5 ± 0.8

          F22

           885

           

          F1200

             3.0 ± 0.5

          F24

           745

           

          F1500

          2.0 ± 0.4

          F30

           625

           

          F2000

          1.2 ± 0.3

          F36

           525

           

           

           

          F40

           438

           

           

           

          F46

           370

           

           

           

          F54

           310

           

           

           

          F60

           260

           

           

           

          F70

           218

           

           

           

          F80

           185

           

           

           

          F90

           154

           

           

           

          F100

           129

           

           

           

          F120

           109

           

           

           

          F150

           82

           

           

           

          F180

           69

           

           

           

          F220

          58

           

           

           

          The particle size distribution of macrogrits is determined by sieving, while the microgrits have been measured by sedimentation (photosedimentometer).

          More information can be found in the FEPA-standard 42-1984 R 1993 and in ISO 8486.

           
          国产成人剧情AV果冻传媒