concentration

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The water absorbent resin is particular in shape and contains particles of a particle size in a range of not less than 106 [micro]m and less than 850 [micro]m in an amount of not less than 90 mass percent with respect to a total mass of the water absorbent resin.
Effect of different collectors on floatability of oil shale (mean particle size 55 [micro]m, frother MIBC, pH 7) Experiment Collector Mass percent of froth 9 DMSO 73.
the content of EU rubber was the mass percent ratio of the purified EU rubber to the dried sample.