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fineness factor

A measure of the average particle size of clay and ceramic material, computed by summing the products of the reciprocal of the size-grade midpoints and the weight percentage of material in each class (expressed as a decimal part of the total frequency). The measure is based on the assumption that the surface areas of two powders are inversely proportional to their average particle sizes.

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  • ed.young
  • (Milwaukee, United States)

  •  (V.I.P) 21084 分数
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