CBC-3D is a tri-level assayed hematology control. It has 105-day closed vial stability with 21-day open vial stability. It is used for wide variety of 3 part differential analyzers. It is used for wide variety of 3 part differential analyzers. It is available in a pack size of 3×3 ml (all 3 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 21 Days Vial Volume 3 ml