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The AAPG/Datapages Combined Publications Database
Journal of Sedimentary Research (SEPM)
Abstract
Comparative Efficiencies of Size Analysis by Hydrometer and Pipette Methods
R. W. Sternberg, Joe S. Creager
ABSTRACT
A large sample of silt and clay was divided into nine sub-samples with concentrations increasing from 3 g/l to 25 g/l. These sub-samples were first subjected to the hydrometer analysis after which they were shaken and re-analyzed by the pipette method. The results of the two analyses were then compared.
Within a moderate range of silt and clay concentration (6 to 24 g/l), the analyses gave similar results for the 5 through 9 size-grades. With concentrations of less than 6 g/l, the pipette analysis was superior; with concentrations greater than 24 g/l, the hydrometer analysis was more efficient. Within the range of concentrations studied, however, the pipette method gave better over-all results.
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