Application Note No. 70 examines the performance of the HP-RSD/L based on extensive tests conducted with iron ore fines under real-world conditions. Sample masses between 12.5 kg and 140 kg were processed, covering the full range typical for industrial laboratory operations. Throughout the test series, the material feed rate was kept constant, and the rotating drum operated at a peripheral speed of 0.6 m/s, equivalent to 10.6 revolutions per minute.
The HP-RSD/L features three 25-percent and two 12.5-percent collection positions, whose actual mass distributions were captured and analyzed using an integrated load cell. The measured averages aligned almost exactly with the target split ratios, demonstrating highly precise and consistent division. The coefficients of variation remained very low, between 0.9 and 2.6 percent, clearly below the ISO 3082 threshold values. The results also showed no dependency on the initial sample mass, further highlighting the system’s robustness and reliability.
The study confirms that the HP-RSD/L provides nearly ideal mass division. Its design, featuring steep internal surfaces, fixed split ratios, and a precisely operating drum mechanism, ensures consistent and representative mass reduction. Any remaining analytical uncertainties arise primarily from upstream or downstream processes rather than from the division step itself. As a result, the HP-RSD/L fully meets the requirements of ISO 3082 and delivers a dependable solution for automated laboratory workflows worldwide.
Read Application Note 70 now and discover how precise mass division and robust performance can significantly enhance the quality and efficiency of your automated sample preparation processes.
