1.1 This terminology defines terms used in the description and procedure of analysis of the size of particulate materials through sieve analysis with standard testing sieves. The terms relate directly to the equipment used in the analysis, the physical forms of the material to be sieved may take on before, during, or after analysis, and selected descriptive data reduction and analysis formats.

1.2 Committee E-29 on Particle Size Measurement feels that it is essential to include terms and definitions explicit to the scope, regardless of whether the terms appear in existing ASTM standards. Terms that are in common usage and appear in common-language dictionaries are generally not included.