Product Description

Globe Scientific's plastic micro hematocrit capillary tubes are completely unbreakable. They eliminate the risk of injury and contamination associated with glass tubes due to breakage.

  • Plastic micro hematocrit capillary tubes comply with FDA, NIOSH, CDC and OSHA safety recommendations
  • The tubes are available plain (untreated) 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:
    • Untreated - Blue Tip
    • Ammonium Heparinized - Green Tip
    • Sodium Heparinized - Red Tip

Technical Information:

  • Inside Diameter: 0.90mm +/- 0.05mm
  • Outside Diameter: 1.60mm +/- 0.05mm
  • Length: 75mm +/- 0.5mm
  • Volume: 45uL
  • Spin rate: 12,000 RPM for 4 minutes
  • Material: Polyethylene Terephthalate (PETG)
  • Latex free


  • Only use plastic capillary tubes on micro-hematocrit centrifuge rotors that support the entire length of the tube. If the rotor only supports the tubes at two points, the tubes will bend and the sample will be lost. For rotors that support two points, use our glass capillary tubes.
  • 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 treated with an anticoagulant (heparin).


Manufacturer Globe Scientific
Latex Free Yes
Overall Length 75mm
Overall Diameter 1.6mm
Volume 45uL
Item Ships From New Jersey


No return will be accepted by the seller for any reason without prior written authorization. Returns will be accepted within 30 days of shipment, only if products are in new and unused condition (must be in original, unopened carton/packaging) and accompanied by a health and safety declaration as regards potential contamination with hazardous materials due to customer use of the product. The manufacturer reserves the right to assess a minimum 20 percent restocking fee at their discretion. All shipping charges remain payable. This manufacturer assesses order cancellation fees if a submitted order is cancelled prior to shipment.

NOTE: Discontinued items, sterile products, and prefilled containers are NOT returnable.  Also, Special Order Items are non-cancellable and not able to be returned as these are made to order.


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