Products Description
Black Top ESR Tube | 3.8% Sodium Citrate Vacuum Blood Collection Tube
Upgrade your laboratory's hematology efficiency with our Black Top ESR Tube. This Vacuum Blood Collection Tube is specifically engineered for Erythrocyte Sedimentation Rate (ESR) testing. Pre-filled with 3.8% Sodium Citrate anticoagulant, it maintains a strict 1:4 additive-to-blood ratio. The slender design seamlessly integrates with automated ESR analyzers, making it an ideal choice for diagnosing inflammation and monitoring clinical conditions.
Key Features & Attributes
1.Precise Anticoagulation: Pre-filled with 3.8% (0.129 mol/L) Sodium Citrate in a 1:4 ratio to effectively prevent clotting.
2.Slender Tube Design: Unique 8x120mm slender size tailored for ESR sedimentation dynamics and automated analyzer racks.
3.Clear Scale Marks: Printed with blue volume calibration rings for visual confirmation.
4.Stable Vacuum Tech: Pre-calibrated negative pressure guarantees accurate fill volume, eliminating manual dilution steps.
5.Safety Black Cap: Universal color coding for ESR tubes to prevent misidentification during multi-tube phlebotomy.
6.Pierceable & Durable: Made of medical-grade PET or Glass, resistant to centrifugation, with a stopper designed for automated instrument piercing.
7.Sterile & Pyrogen-Free: Strictly sterilized and safe for clinical blood collection.
8.Global Compliance: Manufactured under strict CE and ISO 13485 in vitro diagnostic standards.
Product Specifications
1.Item: Black Top ESR Tube (Vacuum Blood Collection Tube)
2.Additive: 3.8% Sodium Citrate (Ratio 1:4)
3.Draw Volumes: 1.28ml, 1.6ml (OEM range available)
4.Cap Color: Black (International standard for ESR)
5.Tube Material: PET / Glass
6.Customization & Wholesale
OEM/ODM Services: Custom labeling (barcodes, logos) and additive concentration adjustments.
Packaging Solutions: Flexible options including bulk foam trays, rack packaging, or individual sterile pouches.
Bulk Pricing: Competitive factory-direct rates for global distributors.
Why Choose Us
Direct Factory Export
Own factory + self-export license, no middleman markup, strong price competitiveness.
Fast Response
From inquiry, sampling to production and shipment, handled by one team, ensuring high communication efficiency.
Small Batch Support
Accept trial production with negotiable MOQ, reducing client's new product development risk.
Located in Shandong Medical Consumables Hub
Chengwu and surrounding areas form a complete supply chain, shortening material sourcing radius and reducing costs.
Our Certificate
CE
CE
ISO
MD
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FAQ
Q: What is the black top ESR tube used for?
A: The Black Top ESR Tube is used for erythrocyte sedimentation rate (ESR) testing with the Westergren method.
Q:What is the ratio in a sodium citrate ESR tube?
A: Our ESR Blood Collection Tube uses a strict 1:4 blood-to-anticoagulant ratio.
Q: Is it leak-proof and safe?
A: Yes. The black ribbed cap with a butyl rubber stopper ensures superior airtightness. The closed-system design allows direct piercing on analyzers, reducing contamination risks.
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