Calculating and Plotting Size Distributions
weight by the total weight and multiplying by 100. The Cumulative % Passing, column (E), is the fraction of the total weight that passes through each individual screen. It is calculated for a given size by subtracting the material retained on all of the coarser sieves from 100. For example, in Table 1, the cumulative % passing 63 micrometers is 100 – – – ...
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