Capillary Tube, Microhematocrit, Soda Lime Glass, Red Tip, Sodium Heparinized
These glass capillary tubes are designed for safe blood collection and accurate micro-hematocrit determinations. Precision molded, they provide excellent sample retention during centrifugation. Additionally, the tubes fill rapidly without affecting specimen integrity. The tubes have an anticoagulant (sodium heparin) that keeps the blood from clotting. All of the tubes have color coded ends to easily identify the plain and heparin treated tubes.