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A riffle sample divider is a fractional sub-sampling instrument used for dividing the sample (dry and free-flowing granular particles) i.e., reducing the size of the bulk material for further laboratory analyses of its characteristic composition.
Posted by Tradeindia user (17-08-2020)
A dry, free-flowing and homogenous sample is slowly and evenly fed by a hopper, bucket or a pan at the centre of the device. The material flows alternately through the arranged passages in the opposition direction (chutes of same size) where the sample is divided and collected into two collecting pans affixed underneath the dividing head outlets.