Medical Consumables and Lab Consumables OEM Manufacturer
Medical Consumables and Lab Consumables OEM Manufacturer

Double-wall Tubes

Golden VacTM blue-top blood tubes specially designed with double walls are made of polypropylene(PP) and polyethylene terephthalate(PET). Polypropylene is ideal for sensitive coagulation parameters due to its nonreactive characteristics. The inner tube is made of polypropylene and prevents the evaporation of liquid. The outer tube is made of polyethylene terephthalate and ensures a long shelf-life for the vacuum.

Description of Double-wall Tubes


Sodium citrate is used as anticoagulant to prevent blood from clotting.


Filled with a buffered sodium citrate solution in a concentration of 0.109mol/L (3.2%).


The blood to additive ratio is 9:1. The ratio of blood to anticoagulant is critical for valid prothrombin time results. 


Immediately after draw, gently invert the tube 3-4 times in order to activate adequate anticoagulant.


Centrifugation: 2000-2500 g for 10-15 minutes at 18-25° C.

Specification of Double-wall Tubes

Click on the item code below to view product images.

Cat. NoVolume/mlSize/mmAdditiveSeparatorMaterialCap ColorClosure
GD018SCD1.813X75Sodium Citrate 3.2%/PET (Double Wall)Cap ColorSafety Cap+Rubber
GD027SCD2.713X75Sodium Citrate 3.2%/PET (Double Wall)Safety Cap+Rubber

Start Your One-Stop Solution
If you have any questions about our medical consumables products and services, Please contact us or complete the online form.
Contact Us

Add: No.10 Beiyuan Ave, Huangyan, Taizhou, Zhejiang, China

Tel: +86 576 84115678



Add: 807 Palmyrita Ct, Riverside, CA 92507

Tel: + (951) -231-1480


Ask Us Anything!
GD018SCD 1.8ml Sodium Citrate 3.2% Double-wall Tubes GD027SCD 2.7ml Sodium Citrate 3.2% Double-wall Tubes
We use cookies to offer you a better browsing experience, analyze site traffic and personalize content. By using this site, you agree to our use of cookies. Visit our cookie policy to learn more.
Reject Accept