5.0 mL Sterile HDPE Transport Vials with Natural Screw Cap — 25/Bag Unassembled (222-3005-070)
These 5.0 mL high-density polyethylene transport vials are sterile, natural-colored, and supplied 25 per bag with unassembled natural screw caps — the tube and cap arrive together in the same bag for flexible, just-in-time preparation. The 5.0 mL format is the standard capacity for urine, blood, and body fluid micro-aliquots, providing sufficient volume for most routine analytical panels while keeping each vial compact enough for efficient transport kit packing. HDPE delivers the lowest organic extractable profile among polyethylene materials, making these vials the preferred choice for extraction-sensitive clinical specimens and boric acid–preserved urine transport.
Technical Specifications
| Specification | Value |
|---|---|
| Part Number (MPN) | 222-3005-070 |
| Capacity | 5.0 mL |
| Material | High-Density Polyethylene (HDPE) |
| Color | Natural |
| Cap | Natural screw cap — unassembled (tube + cap in same bag) |
| Sterility | Sterile |
| Pack Size | 25/Bag Unassembled |
| BPA / Phthalate / Latex | BPA-Free, Phthalate-Free, Latex-Free |
| Country of Origin | USA |
Applications
- Clinical and reference lab specimen transport — screw cap provides leak-resistant closure for courier and mail-out samples
- Urine specimen transport and collection — 5.0 mL capacity accommodates standard mid-stream urine aliquots; HDPE is compatible with boric acid preservation
- Blood and body fluid sub-aliquoting — sterile format suitable for splitting primary tubes into analytical fractions
- Point-of-care specimen collection — compact, sterile vials integrate readily into clinic- or bedside-assembled collection kits
- Short-term refrigerated storage (2–8 °C) — HDPE maintains low extractable profile under cold-chain conditions
- Small-volume extraction protocols — HDPE compatibility with aqueous and mild organic matrices supports micro-extraction workflows
- Pre-loaded transport media preparation — sterile vials can be filled with transport medium during kit assembly
Chemical Resistance
| Reagent / Condition | Compatibility |
|---|---|
| Aqueous buffers / saline | Excellent — inert across pH 2–12 |
| Boric acid (urine preservative) | Excellent — compatible with standard urine transport preservatives |
| Dilute HCl / H₂SO₄ (<10%) | Excellent — compatible with standard acid preservatives |
| Serum / plasma / urine | Excellent — standard clinical specimen matrices; low extractables |
| Formalin (10%) | Excellent — compatible with standard fixative |
| Methanol / ethanol (<50%) | Good — short-term contact compatible |
| Acetonitrile | Limited — moderate short-term exposure acceptable; avoid prolonged contact |
| Cold storage (2–8 °C) | Excellent — maintains integrity under standard cold-chain conditions |
Quality & Procurement
Made in USA, these Caplugs® Evergreen vials are manufactured from FDA-compliant, BPA-free, phthalate-free, and latex-free HDPE resin. The sterile designation and low-extractable material profile support use in regulated clinical and reference laboratory environments where specimen integrity and chain-of-custody are critical. LabSupplies.com is an authorized dealer of Caplugs® Evergreen consumables and ships from USA inventory, typically same business day for stocking items, with tiered pricing available for high-volume institutional and grant-funded purchasers.
Frequently Asked Questions
Are these vials sterile as shipped?
Yes — part number 222-3005-070 is supplied sterile. The caps and tubes arrive unassembled in the same bag; sterility is maintained until the bag is opened, so vials should be assembled under appropriate conditions for your intended use.
Why are the caps unassembled?
Unassembled packaging allows labs to fill and cap vials on demand — for example, when pre-loading transport media or dispensing preservative — without the waste or contamination risk associated with pre-assembled vials that must be opened and recapped.
Why is HDPE preferred over other polyethylene materials for extraction-sensitive specimens?
HDPE has a lower organic extractable profile than many other polyethylene transport vial materials, which matters when trace polymer leachates could interfere with downstream analytical tests such as toxicology screens, trace-metal assays, or highly sensitive immunoassays. It also provides confirmed compatibility with boric acid, the most common urine transport preservative.
Are there larger pack-size or different-material options available?
Yes — related formats in the Caplugs® Evergreen line include a 5.0 mL PPC vial in 25-count and 1000-count configurations, as well as a 2.5 mL PPC vial in a 25-count bag. Contact LabSupplies.com for volume pricing or to discuss which format best fits your transport kit specifications.