25 mL Hematology Dilution Vials — Polystyrene, Natural, Assembled with Caps, 50/Tray (201-5266-050)
These 25 mL polystyrene hematology dilution vials are supplied non-sterile in a bench-ready tray of 50, with caps pre-fitted, for immediate use in CBC/DIFF sample preparation workflows. The natural (clear) PS construction provides the optical clarity needed for visual inspection of diluted samples prior to analyzer aspiration, while the cylindrical 25 mL geometry delivers sufficient headspace for inversion mixing without spillage and accommodates the aspiration dead volume required by high-throughput hematology platforms. Part number 201-5266-050 ships fully assembled in a carrying tray that supports direct dispensing without unpacking — a practical advantage for stat draw stations and point-of-care hematology setups where setup speed is critical.
Technical Specifications
| Specification | Value |
|---|---|
| Part Number (MPN) | 201-5266-050 |
| Capacity | 25 mL |
| Material | Polystyrene (PS) |
| Color | Natural |
| Cap | Included — pre-fitted |
| Sterility | Non-Sterile |
| Pack Size | 50/Tray (assembled in tray) |
| BPA / Phthalate / Latex | BPA-Free, Phthalate-Free, Latex-Free |
| Country of Origin | USA |
Applications
- CBC/DIFF sample pre-dilution on automated hematology analyzers using manual or semi-automated dilution workflows
- Inversion or vortex mixing of blood aliquots with isotonic diluents and lysing reagents prior to analyzer aspiration
- Stat draw stations and point-of-care hematology setups requiring rapid, tray-direct dispensing
- Smaller-volume clinical labs where a pre-assembled, tray-format consumable reduces per-run setup time
- Bench dilution protocols requiring a standard 25 mL vial-based inversion-mixing format
Compatibility
These 25 mL hematology dilution vials are designed for manual pre-dilution workflows on a broad range of automated hematology platforms. Compatible analyzer series include the Sysmex XN-1000 / XN-2000 / XN-3000 / XN-9000 and legacy XE-2100 / XE-5000; Beckman Coulter DxH 500, DxH 800, and DxH 900; Abbott CELL-DYN Ruby, Sapphire, and Emerald; Mindray BC-5000, BC-6000, BC-6800, and BC-6900; Horiba Yumizen H550, H560, H1500, and H2500; and Nihon Kohden Celltac G MEK-9100. Because dispenser arm clearance, tube-carrier dimensions, and diluent dispensing volumes vary by analyzer model and configuration, laboratories should verify dimensional fit and workflow parameters against their specific platform before transitioning from OEM supply.
Chemical Resistance
| Reagent / Condition | Compatibility |
|---|---|
| Aqueous isotonic diluents / saline | Excellent |
| Hematology lysing reagents (aqueous, mild detergent) | Good — suitable for typical clinical contact times |
| Dilute aqueous buffers | Excellent |
| Ethanol >70% | Not recommended |
| Acetone / chlorinated solvents | Not recommended |
| Aromatic solvents | Not recommended |
| Autoclave / dry heat sterilization | Not recommended — PS is not autoclavable |
Quality & Procurement
Made in USA under ISO 9001 quality management controls, these Caplugs® Evergreen dilution vials are produced from FDA-compliant, food-contact-grade polystyrene resin that is BPA-free, phthalate-free, and latex-free. Each tray is assembled with caps pre-fitted, arriving ready for immediate bench deployment. LabSupplies.com is an authorized Caplugs® Evergreen dealer, shipping from USA inventory with typical same-business-day dispatch for stocking SKUs. Tiered volume pricing is available for institutional, hospital, and grant-funded laboratories purchasing multiple trays.
Frequently Asked Questions
Do the caps come pre-attached, or do they need to be fitted before use?
The 50/Tray format ships fully assembled — caps are pre-fitted on each vial and arranged in the carrying tray, so no assembly step is required before use at the bench or stat draw station.
Are these vials sterile?
No — they are supplied non-sterile. Hematology sample dilution workflows do not typically require sterile consumables, but laboratories with specific sterility requirements should evaluate whether additional processing is appropriate for their protocol.
Can polystyrene vials be used with all hematology analyzer reagents?
Polystyrene performs well with the aqueous isotonic diluents, lysing reagents, and mild detergent washes used in standard CBC/DIFF workflows. PS is not recommended for contact with acetone, chlorinated solvents, aromatic solvents, or alcohols above 70%, which are not typical in routine hematology dilution protocols. Always confirm reagent compatibility with your laboratory's specific reagent system before use.
Are there other pack formats available for these vials?
Yes. Sibling formats include a 50/Bag vials-only option (201-5266-01S) and a 144/Bag unassembled-with-caps configuration (201-5266-05K), allowing procurement teams to match pack size and assembly format to throughput requirements and storage preferences.