Vacuum Blood collection tube is made from PVC cap, rubber stopper, test tube (PET or Glass), sticker and additive, used for blood specimen collection and storage in clinical laboratory.
Features:
a) accurate vacuum draw volume
b) excellent performance additive
c) clear label, doesn't break off
d) colorless/ transparent tube, visible of the inside contents
e) can bear a centrifugal force more than 3000 XG
f) shelf time 24 months for PET, 24 months for glass
The sodium citrate solution is added to the blood collecting tube for anticoagulation, and the ratio of anticoagulant to blood is1: 4. For the determination of erythrocyte sedimentation rate. 13x75mm tube is specially used for blood specimens collection and anticoagulation in Westergren sedimentation test. 8x120mm tube can be used with ESR rack or automatic blood sedimentation
instrument.
Purpose:
Blood collection tube and PRP tube are JIangsu Yuli supper hot products, we have been specialized in general vacuum blood collection tube since the year of 2011. 
Identification:
Sodium citrate blood coagulation test tube: