The Capillary Tube Microhematocrit Tube 20 Pcs draws blood via capillary action for PCV measurement. Borosilicate glass construction maintains sample integrity during high-speed centrifugation. With a 75mm length, each tube contains up to 75µL of sample for precise laboratory analysis.
Key Features
- High-Strength Clear Glass: Transparent walls permit immediate visual confirmation of blood levels. Accuracy improves during manual scale readings.
- Uniform Bore Diameter: Inner diameter of 1.1-1.2mm maintains consistent blood volume intake. Hematology testing errors drop with stable volumes.
- Standard 75mm Length: Sizing matches standard microhematocrit centrifuge rotors in BD pathology labs. Physical dimensions prevent breakage from equipment mismatch.
- 60-75µL Capacity: Internal volume supports standard blood fractionation requirements. Sufficient volume exists for multiple PCV test repetitions.
Frequently Asked Questions
What is the use of microhematocrit capillary tube?
These tubes collect small blood volumes for packed cell volume (PCV) testing. Capillary action draws the sample into the 75mm glass cylinder automatically.
How to seal microhematocrit tubes?
Press the dry end of the tube into a clay sealant tray. This creates a plug that prevents sample loss during centrifugation.

























































