For use in quality control/manufacturing process only. Others Density Reference Standard Beads Batch B Density Reference Standard Beads (DRSB) 3.8.9.9.1.5 Batch B 06422667001 Density Reference Standard Beads Batch B Density Reference Standard Beads 04038377027937 Calibrator 1 x 10 mL Batch B Not Available CustomBiotech product. Please contact your local representative. true Unit of measure is "piece". The Density Reference Standard Beads (DRSB) are designed to mimic cell behavior in flow dynamics. Due to their size and optical properties, they will be detected as dead cells by the Cedex HiRes Software. en The Cedex HiRes Analyzer measures the cell density, also known as concentration, of a cellular suspension, along with its viability status and cell characteristics such as diameter and compactness. To check the correct calibration with regard to the density, use the Density Reference Standard Beads instead of an ordinary cell sample.This product is traceable for the following aspects:Particle Size: NIST, USAParticle Concentration: Physikalisch-Technische Bundesanstalt, Berlin, GermanyThe Density Reference Standard Beads (DRSB) are designed to mimic cell behavior in flow dynamics. Due to their size and optical properties, they will be detected as dead cells by the Cedex HiRes Software. en For flow factor adjustment of the Cedex HiRes Analyzer, a minimum of two DRSB vials with different batch numbers is required (Batch A and Batch B). en