VACUETTE® no additive tubes are used in determinations for clinical chemistry and hormones, microbiological serology, immunology, TDM and crossmatching. The tubes without additive from Greiner Bio-One are available in the version Z no additive. There is no additive in the tube, after one hour the blood in the tube is completely coagulated.

VACUETTE® tubes without additives contain no chemical additives, but like the other tubes with an additive, are evacuated and are sterile on the inside.