Product Information
01 Product Specifications
| Item | Specification |
| Product | Sodium Citrate Blood Collection Tube (9:1) / PT Tube |
| Cap Colour | Blue Cap |
| Additive | 3.2% Sodium Citrate Buffer |
| Tube Material | PET / Glass |
| Tube Size (mm) | 13*75, 13*100, 16*100 |
| Available Volumes | 2ml, 3ml, 4ml, 5ml, 6ml, 7ml, 8ml, 9ml,10ml |
| Test Item | Coagulation Function Test |
| Sterilization Type | Irradiation |
| Shelf Life | 2 Years |
| OEM | Available |
| MOQ | 50,000 PCS |
| Package (cm) |
1200pcs/ctn; 50*35*19 (13*75mm), 50*35*24 (13*100mm), 51.5*40.5*23.5 (16*100mm) |
| Payment Terms | 30% T/T deposit, 70% balance before shipment |
02 Core Features
- Industry‑standard blue colour‑capped closure: Instant visual identification for coagulation‑hemostasis testing workflows.
- Strict 9:1 blood‑to‑3.2%‑sodium‑citrate ratio: Pre‑dispensed buffered sodium‑citrate; vacuum guarantees target fill‑volume to avoid ratio deviation which would falsify coagulation‑assay readings.
- Controlled pre‑evacuated vacuum: Delivers accurate draw‑volume, reduces hemolysis risk and minimises manual‑operation errors.
- Two material selections: Shatter‑resistant transparent PET or high‑clarity medical‑grade glass.
- Secure leak‑proof stopper‑cap assembly: Preserves plasma‑sample integrity during storage and specimen transportation.
- Sterile & non‑pyrogenic: Single‑use only; sterilized via EO‑gas or gamma irradiation to eliminate cross‑contamination risks.
- Broad compatibility: Works with standard multi‑sample holders, butterfly blood‑collection sets and mainstream automated coagulation analysers.
Quality Assurance
All coagulation vacuum blood collection tubes are produced under ISO‑13485‑compliant clean‑room production. Full‑range QC procedures cover:
- Raw‑material incoming inspection for tube bodies, rubber stoppers and caps
- Sodium‑citrate dispensing, buffer‑concentration and dosage‑precision verification
- Vacuum‑retention performance validation
- Sterilization‑process validation
- Finished‑product visual and functional inspection prior to final packaging
Certificates
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FAQ
Q1: What is the difference between blue‑cap 9:1 coagulation tube and black‑cap 4:1 ESR citrate tube?
A: Blue‑cap coagulation tube uses 9:1 blood‑to‑3.2%‑sodium‑citrate ratio for PT/APTT coagulation assays. Black‑cap ESR tubes apply 4:1 dilution with 3.8% sodium‑citrate for sedimentation‑rate measurement. They cannot substitute for each other.
Q2: Why is accurate fill‑volume so important for blue‑cap coagulation tubes?
A: Coagulation‑test results are extremely sensitive to blood‑citrate dilution deviation. Under‑filling will prolong clot‑time readings and produce false‑diagnostic conclusions.
Q3: Do you support OEM / private‑label service for vacuum blood collection tubes?
A: Yes. Custom‑printed cartons, private‑label marking and pre‑barcoded tube labels are available subject to MOQ terms. Contact our sales team for detailed project requirements.
Q4: What certificates do you have for vacuum blood collection tubes?
A: Our factory holds ISO 13485 quality‑management‑system certification, and ESR tubes carry CE and FSC certification. We can provide certificate copies for import registration and customs clearance.
Q5: What is the lead time for bulk orders?
A: Normally 30–45 days after receiving your deposit. Lead time will be confirmed according to order quantity and packaging requirements.
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