Globe Scientific 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

The tubes fill rapidly without affecting specimen integrity

The tubes are available plain (untreated) or with an anticoagulant (sodium or ammonium heparin) that keeps the blood from clotting

All of the soda lime glass 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: 1.15mm +/- 0.05mm

Outside Diameter: 1.5mm +/- 0.05mm

Length: 75mm +/- 1mm

Volume: 75uL

Spin rate: 14,500RPM for 5 minutes

Material: Soda Lime