Published: Jan 1970
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This report describes a method by which the time required to draw a grain size curve from hydrometer test data is reduced from approx 20 min to less than 5 min per sample. Briefly, this method consists of the plotting of elapsed time and uncorrected hydrometer readings directly onto a grain size graph by the use of a transparent grid mounted on a tracing table. The construction of the grid is described. Because accepted methods of computation are used throughout, no approximations are introduced.
Senior Laboratory Technician, Caseco Consultants Limited, Vancouver, B. C.
Paper ID: STP38492S