A COMPARISON OF ELECTRONIC AND PIPET METHODS FOR MECHANICAL ANALYSIS OF SOILS

Abstract
An electronic method was developed and compared to the pipet method for determining particle size distribution of 43 samples representing a wide variety of Idaho (USA) soils. The Coulter Counter model TAII was used for the electronic method. Thirty-seven of the 43 samples had the same textural classification by both the electronic and pipet methods. There was significant correlation between the 2 methods in the amounts of clay and silt found in the soil samples. Approximately twice as many samples can be run by the electronic method in the same amount of time as by the pipet method.

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