25 mL Hematology Dilution Vials — Polystyrene, Natural, 144/Bag with Caps (201-5266-05K)
These 25 mL polystyrene hematology dilution vials are designed for automated CBC/DIFF workflows on Sysmex, Beckman Coulter, Abbott, Mindray, Horiba, and Nihon Kohden platforms, supplied non-sterile at 144 vials per bag with caps included loose for on-demand assembly. The cylindrical PS format provides the headspace needed for inversion mixing without spillage and accommodates the aspiration dead volume required by high-throughput analyzers running 60–120 samples per hour. At 144 units per bag, part number 201-5266-05K delivers the best per-vial economics for high-volume clinical labs processing 200 or more CBCs per shift.
Technical Specifications
| Specification | Value |
|---|---|
| Part Number (MPN) | 201-5266-05K |
| Capacity | 25 mL |
| Material | Polystyrene (PS) |
| Color | Natural |
| Sterility | Non-Sterile |
| Pack Size | 144/Bag (caps included, unassembled) |
| BPA / Phthalate / Latex | BPA-Free, Phthalate-Free, Latex-Free |
| Country of Origin | USA |
Applications
- Automated CBC and DIFF sample pre-dilution on high-throughput hematology analyzers
- Precise blood-to-diluent mixing (typically 1:224 to 1:500 dilution ratios) prior to analyzer aspiration
- Manual bench dilution and inversion-mixing protocols in any 25 mL vial-based workflow
- Lysing reagent preparation and sample preparation steps in hematology analyzer workflows
- High-volume clinical laboratories running multiple CBC/DIFF shifts requiring cost-efficient bulk packaging
Compatibility
These 25 mL hematology dilution vials are compatible with a broad range of automated hematology platforms commonly found in clinical and hospital laboratories. On the Sysmex XN series — including the XN-1000, XN-2000, XN-3000, and XN-9000 — they fit the standard dilution vial position; verify dispenser arm clearance on your specific configuration. Legacy Sysmex XE-2100 and XE-5000 instruments accept the pre-dilution tube format as well. For Beckman Coulter DxH 500, DxH 800, and DxH 900 platforms, these vials support the manual pre-dilution workflow. Abbott CELL-DYN Ruby, Sapphire, and Emerald analyzers can aspirate from these vials after manual dilution. Mindray BC-5000, BC-6000, BC-6800, and BC-6900 platforms support a pre-dilution workflow with this vial format; verify tube-carrier fit for your model. Horiba Yumizen H550, H560, H1500, and H2500 systems accept this 25 mL sample preparation vial, as does the Nihon Kohden Celltac G MEK-9100 in its standard pre-dilution format. As dilution protocols and carrier tolerances vary by analyzer model and software revision, always confirm diluent dispensing volumes and carrier dimensions against your instrument's operator manual before transitioning from your current OEM supply.
Chemical Resistance
| Reagent / Condition | Compatibility |
|---|---|
| Isotonic saline / aqueous buffers | Excellent |
| Isotonic hematology diluents | Excellent |
| Mild detergent washes | Good — short-term contact |
| Lysing reagents (aqueous, dilute) | Good — verify with your specific lysing agent |
| Ethanol >70% / isopropanol | Not recommended |
| Acetone / aromatic solvents | Not recommended |
| Chlorinated solvents | Not recommended |
| Autoclave / dry heat sterilization | Not suitable — PS is not autoclavable |
Quality & Procurement
Made in USA at a Caplugs® Evergreen facility operating under ISO 9001 quality management, these vials are molded from FDA-compliant, food-contact-grade polystyrene resin that is BPA-free, phthalate-free, and latex-free. LabSupplies.com is an authorized dealer of Caplugs® Evergreen consumables and ships from USA inventory, typically same business day for stocking SKUs. Volume pricing is available for high-throughput labs and institutional procurement teams. Laboratories with lower-volume needs or a preference for pre-assembled vials may also consider the 50/Bag vials-only format (201-5266-01S) or the 50/Tray assembled format (201-5266-050).
Frequently Asked Questions
Are these hematology dilution vials sterile?
No — they are supplied non-sterile in 144/Bag packaging. Hematology dilution workflows typically do not require sterile consumables, but confirm this against your laboratory's SOPs and the requirements of your specific analyzer protocol.
Why is polystyrene used instead of polypropylene for hematology dilution vials?
Polystyrene offers the optical clarity needed for visual inspection of the diluted sample before aspiration, and it produces minimal background interference with the impedance-based and optical cell-counting systems used on most modern CBC platforms. It is also well suited to the aqueous isotonic diluents and mild lysing reagents used in hematology workflows. Polypropylene is preferable when solvent resistance or autoclavability is required, but those properties are not typically needed in this application.
Do the caps ship assembled on the vials?
No — the 144/Bag format ships with caps included but unassembled, allowing your team to assemble on demand. If you prefer vials with caps already assembled, the 201-5266-050 (50/Tray) format ships pre-assembled.
Which analyzers are these vials compatible with?
These vials are compatible with a wide range of platforms, including Sysmex XN and XE series, Beckman Coulter DxH 500/800/900, Abbott CELL-DYN Ruby/Sapphire/Emerald, Mindray BC-5000 through BC-6900, Horiba Yumizen H550/H560/H1500/H2500, and Nihon Kohden Celltac G MEK-9100. Always verify carrier dimensions and diluent volumes against your analyzer's operator manual before switching from OEM consumables.