Special Features
Capillary tube; fisherbrand; microhematocrit; heparinized; low taper, soft glass; inner diameter: 1.1 to 1.2 mm; wall: 0.2 mm, +/-0.02 mm; ends can be sealed by sealing clay or flame; interior tube surface evenly coated with 4 to 7 usp units of ammonium heparin; red band on tube indicates heparinization; color coded tube tips and labels; 200 tubes per vial, 5 vials for total of 1000 tubes