Our precalibrated glass capillary tubes are marked with a black calibration line at 60mm from one end. The calibration line establishes a uniform blood column length. Treated with ammonium heparin, these tubes are designed for both safe blood collection as well as accurate micro-hematocrit determinations.
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Capillary Tube, Microhematocrit, 100% PLASTIC, Green Tip, Ammonium Heparinized, 100/Vial, 10 Vials/Unit
Capillary tube, ammonium hep. green tip, 100% plastic
Capillary Tube, Microhematocrit, 100% PLASTIC, Red Tip, Sodium Heparinized, 100/Vial, 10 Vials/Unit
Capillary tube, sodium heparin red tip, 100% plastic
Capillary Tube, Microhematocrit, 100% PLASTIC, Blue Tip, Plain, 100/Vial, 10 Vials/Unit
Capillary tube, plain blue tip, 100% plastic