The CAL 8000 can automatically distribute the samples with “Repeat”, “Rerun” and “Reflex” criteria which are pre-defined by users. The unloading area can hold up to 200 sample tubes at a time. From here the users could select the sample tubes which need further analysis. Mindray provides original slides to ensure quality of blood smears and reliable performance of SC-120. Mindray provides original stains as well as buffer fluid to ensure high quality of staining. Since the reagent reservoir tank is able to store the reagents required for approximately 50 blood counts, this ensures uninterrupted working of each unit of BC-6800 on CAL 8000, while the users are replacing the reagents. All reagents as well as the pneumatic unit could be set in the trolley below respective BC-6800 or SC-120. In this manner, the reagents and pneumatic unit could be well organized permitting easy reagent replacement. The loading area can hold up to 200 sample tubes at a time. The STAT position provides and option for a faster blood count. The whole CAL 8000 can be started by just pressing one button. The special tube racks utilize different barcodes to differentiate specific usages, such as “QC”, “Slide making & staining only” and “RET test only”. The special tube racks could carry the tubes to perform these specific functions through the simplest way.