Table E1. EquivalencebetweenASTM grain size numbersandgrain size(adaptedfrom ASTM E112).ASTM Grain Size NumberMean Planar GrainDiameter ( m)00508.00359.20.5302.11.0254.01.5213.62.0179.62.5151.13.0127.03.5106.84.089.84.575.55.063.55.553.46.044.96.537.8ASTM Grain Size NumberMean Planar GrainDiameter ( m)7.031.87.526.78.022.58.518.99.015.99.5「 13.310.011.210.59.411.07.911.56.712.0「 5.612.54.713.04.013.53.314.02.8。