Westergren ESR Blood Collection Tubes Sodium Citrate Ratio To Blood 1:4

Westergren esr vacuum blood collection tube with sodium citrate ratio to blood 1:4

1.Product Introducation:

ESR tube is used for testing erythrocyte sedimentation rate. The additive is 3.8% sodium citrate and the concentration for additive and blood is sodium citrate1:4. And 8*120mm glass tube can match automatic ESR analyzer or visual type blood sedimentation rack to use. This is a closed system and it can be manipulated directly without opening the cap.

ESR tube is specially used for the collection and anti coagulation of blood samples for blood cell sedmentation rate rest by”westergren of sedimentation method”.The specimens are anticoagulated using 0.109mol/L sodium citrate buffer system in it. The volume ratio of anticoagulant to blood is 1:4, including dynamic sedimentation tubes that provide direct specimens and 75mm short tubes that require specimen transfer.Dynamic sedimentation tube directly shows readings after blood collection or is applied to the dynamic sedimentation instrument.

Features:
· Accurate vacuum draw volume
· Excellent performance additive
· Gamma or non sterile, for single use only
· Shelf time 18 months for PET, 24 months for glass 

2.Q&A

Q1: Why choose us?

A1: Professional manufacture of medical and laboratory consumables and instruments .Excellent and stable quality with best cost performance Flexible MOQ for small OEM and ODM business FOC samples for checking ISO9001, ISO13485 with CE  approval Various payment term available Timely delivery guaranteed

Q2: What is your minimum order quantity?

A2: Very low MOQ for common items. For customized items, depend on different requirements.

Q3: Can you supply free samples?

A3: Yes, we would like to offer you free samples.

Q4: Can you offer customized service?

A4: Yes, both OEM and ODM are available. Let me know your idea or requirements on the products, we make it perfect for you.

Q5: How long is your delivery time?

A5: Generally 20-30 days for mass production after sample confirmed and the receipt of formal PO or deposit.

Q6: What is your accepted terms of payment?

A6: Various choice: Credit card, T/T, L/C, Western union, Paypal, Alipay, etc. 30% down payment or 100% full payment according to your order quantity.