CBC-ST PLUS is a tri-level assayed hematology control for monitoring performance of SYSMEX 3 part diff analyzers. It has 105-day closed vial stability with 14-day open vial stability. It is available in a pack size of 3×2.5 ml (all 2.5 vial of any individual level or all 3 different levels (L,N,H)). WBC diff: 3 Part Level: 3 (L,N,H) Close Vial Stability: 105 Days Open Vial Stability: 14 Days Vial Volume: 2.5 ml