Tyler Standard screen scale

Tyler Standard screen scale

[′ti·lər ′stan·dərd ′skrēn ‚skāl]
(engineering)
A scale for classifying particles in which the particle size in micrometers is correlated with the meshes per inch of a screen.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.