Available from Major Distributors
(and many others)









Scooping increases the risk of hemolysis, tissue contamination and clotting – it's also just plain messy. SAFE-T-FILL® collection tubes use capillary action to draw the blood into the capillary straw where it is immediately mixed with anti-coagulant. Discard the straw, pop on the attached cap, and your sample is ready for analysis.
SAFE-T-FILL Blood Gas Capillaries provide the same capillary action as glass without the associated risks. Used with heel or finger sticks, direct from a catheter, or as a transfer device, our capillary tubes offer a safer alternative to glass or Mylar®-coated glass capillary tubes.
RAM Scientific, now a part of ASP Global, has been providing high quality 100% plastic capillary blood collection devices since 1989. Recognized as the premiere source of safe micro blood collection systems for clinical and research applications, RAM is dedicated to laboratory safety through the replacement of glass with plastic.
The SAFE-T-FILL® product line's proprietary technology allows plastic tubes to have the same capillary action as glass tubes without the risks associated with glass. Currently SAFE-T-FILL Capillary Blood Collection Tubes, Blood Gas Capillary Tubes, and Micro Hematocrit Tubes are available in a variety of sizes and additives for a wide range of applications. They are available through all major distributors. SAFE-T-FILL products can also be customized to suit individual requirements.
Now Part of ASP Global
Copyright© 2023 ASP Global. All rights reserved.
SAFE-T-FILL® is a registered trademark of:
ASP Global – Corporate Headquarters
7800 Third Flag Parkway
Austell, GA 30168