Serum Separation tubes are covered with clot activator  powder to accelerate blood coagulation. 

Silica (clot activator) is used as the activator. 

Serum is a substance freed from the fifibrinogen but  containing fragments of thrombocyte and product of  the metabolism. 

Usage: to research serum in the clinical chemistry,  immunology, serology, protein electrophoresis. 

Specimen: serum. 

Clotting time: from 10 to 30 minutes. 

Conditions of centrifugation: 1500-1800 g for 10  minutes. 

Before centrifuging the tubes with serum it is necessary  to wait until blood clotting.

13*75mm  1-5ml

13*100mm 5-7ml

16*100mm 8-10ml

13*75mm  100pcs/rack  1200pcs/box   box size: 37*31*28cm

13*10mm  100pcs/rack  1200pcs/box   box size: 37*31*35cm

16*100mm  100pcs/rack  800pcs/box   box size: 42*35*24cm