Product Information
01 Product Specifications
| Item | Specification |
| Product | ESR Tube |
| Cap Colour | Black Cap |
| Additive | 3.8% Sodium Citrate, fixed 4:1 blood‑to‑anticoagulant ratio |
| Tube Material | PET / Glass |
| Tube Size (mm) | 13*75, 13*100, 16*100 |
| Available Volumes | 1.28ml, 1.6ml, 2.4ml, 3.2ml, 6ml, 7ml, 8ml, 9ml |
| Test Item | Erythrocyte Sedimentation 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 black colour‑capped closure: Quick visual identification dedicated for ESR sedimentation assays.
- Precise fixed 4:1 blood‑to‑3.8%‑sodium‑citrate ratio: Pre‑dispensed liquid anticoagulant minimises pre‑analytical deviation for ESR testing.
- Two material selections: Shatter‑resistant transparent PET or high‑clarity medical‑grade glass.
- Secure leak‑proof cap assembly: Protects 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 needles and manual / automated ESR analyser platforms.
Quality Assurance
All ESR 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
- Precision anticoagulant dispensing & concentration verification
- Vacuum‑retention performance validation
- Sterilization‑process validation
- Finished‑product visual and functional inspection prior to final packaging
Certificates
We are Here for You
FAQ
Q1: What is the difference between standard‑body ESR 1:4 tube and slender ESR tube?
A: Both adopt 4:1 blood‑to‑sodium‑citrate ratio for ESR testing. The slender ESR tube has elongated narrow dimensions for direct visual sedimentation reading. Standard ESR 1:4 tubes require matching laboratory ESR racks for measurement.
Q2: Why is the 4:1 blood‑citrate ratio so critical for ESR testing?
A: ESR result is highly sensitive to anticoagulant dilution. Deviation from the fixed 4:1 ratio will alter erythrocyte settling velocity and produce false‑positive or false‑negative ESR readings. The built‑in vacuum ensures target fill volume to maintain this ratio.
Q3: Do you support OEM / private‑label service for ESR 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.
Hot Tags: vacuum blood collection tube‑esr tube (black cap), China vacuum blood collection tube‑esr tube (black cap) manufacturers, factory, blood sample tube, blood specimen collection tube, glass blood collection tube, sodium citrate blood collection tube, Tiger Top Blood Collection Tube, vacuum citrate tube
