Glass Micro-Hematocrit Capillary Tubes

Our glass capillary tubes are designed for both safe blood collection as well as accurate micro-hematocrit determinations. Precision molded, they provide excellent sample retention during centrifugation. In addition, the tubes fill rapidly without affecting specimen integrity. The tubes are available plain or with an anticoagulant (sodium or ammonium heparin) that keeps the blood from clotting. All of the tubes have color coded ends to easily identify the plain and heparin treated tubes. Types of Tubes Untreated: Blue Tip Ammonium Heparinized: Green Tip Sodium Heparinized: Red Tip Packaging: 100 tubes per vial, 10 vials per box (1000 tubes per box) ID: 1.15mm +/- 0.05mm OD: 1.5mm +/- 0.05mm Length: 75mm +/- 1mm Volume: 75uL Spin rate: 14,500RPM for 5 minutes NOTE: If collecting anti-coagulated blood from a blood collection tube, use a plain capillary tube. If collecting by finger stick from a patient or when using untreated blood, use capillary tubes that are tr