Cellometer cell counting beads enable users to verify instrument functionality and establish routine quality control SOPs for daily, weekly, or monthly instrument performance. The beads are supplied with a protocol, a certificate of analysis, and pass/fail criteria which users may choose to test concentration or viability read-outs on their instruments.

• - Rapidly verify instrument functionality.
• - Mimic a live/dead assay with fluorescent beads.
• - Provide quick and simple QC checks; ideal for clinical labs.

Brightfield polystyrene beads in a Trypan blue solution. Diameter: 5 µm

Approximate bead concentration: 5 x 106 beads/mL. Refer to CoA of lot # for expected concentration aon total concentration 4 x 1 mL vials, sufficient for approxiamtely 200 counts. Suitable for use on all Cellometer instruments. Warranty is valid until the expiration date stated on the product packaging.