30 mL Freestanding Centrifuge Tubes, Polypropylene Copolymer, Blue Caps — 1000/Bag
These 30 mL freestanding centrifuge tubes from Caplugs® Evergreen feature a flat-bottom self-supporting base, a blue cap for color-coded specimen management, and a polypropylene copolymer (PPC) body for broad chemical compatibility across clinical and research workflows. Supplied non-sterile and unassembled in a 1000/Bag format, they are an economical choice for high-volume labs managing urine culture, molecular specimen banking, large-volume aliquoting, and archival storage. Part number 240-3530-B80 is BPA-free, lot-numbered, and Made in USA.
Technical Specifications
| Specification | Value |
|---|---|
| Part Number (MPN) | 240-3530-B80 |
| Product Type | Freestanding Centrifuge Tube |
| Volume | 30 mL |
| Material | Polypropylene Copolymer (PPC) |
| Cap Color | Blue |
| Vial Body Color | Natural |
| Base Style | Freestanding Flat Bottom |
| Sterility | Non-Sterile |
| Pack Size | 1000/Bag |
| Format | Unassembled |
| BPA / Phthalate Free | Yes |
| Country of Origin | USA |
Applications
- Urine culture collection and transport — the 30 mL volume accommodates generous sample input without risk of specimen insufficiency
- Swab transport medium elution and environmental specimen collection requiring large-volume containment
- Molecular specimen banking: DNA, RNA, and nucleic-acid-rich sample archival storage in a PPC-compatible vessel
- Large-volume reagent aliquoting and multi-analyte archival storage where smaller tube formats create workflow bottlenecks
- Bench-top specimen processing without a rack — the freestanding flat-bottom base allows direct placement during collection, capping, and labeling steps
- Color-coded tube management systems in clinical, CAP/CLIA, and ISO 15189-regulated laboratories using cap color to designate specimen type, assay batch, department, or processing priority
- LIMS integration and barcode scanning workflows — the smooth label-compatible vial surface supports direct-to-tube labeling
Chemical Resistance
| Reagent / Condition | Compatibility |
|---|---|
| Aqueous buffers and saline | Excellent |
| Dilute acids and bases | Excellent |
| Alcohols (ethanol, isopropanol <70%) | Good — short-term contact |
| Biological specimens (urine, serum, plasma) | Excellent |
| Chlorinated solvents (chloroform, DCM) | Not recommended |
| Aromatic solvents (toluene, xylene) | Not recommended |
Quality & Procurement
Made in USA, these Caplugs® Evergreen centrifuge tubes are manufactured from BPA-free, phthalate-free polypropylene copolymer resin and are lot-numbered to support traceability requirements in CAP-, CLIA-, and ISO 15189-accredited laboratories. The unassembled 1000/Bag configuration minimizes packaging volume for efficient storage and shipping. LabSupplies.com is an authorized dealer of Caplugs® Evergreen consumables and ships from USA inventory, with tiered pricing available for institutional, hospital, and grant-funded purchasing programs.
Frequently Asked Questions
Are these centrifuge tubes sterile?
No — part number 240-3530-B80 is supplied non-sterile. For applications that require a sterile vessel, a separately offered sterile format should be selected.
What does "unassembled" mean for this product?
Unassembled means the blue caps and tube bodies are packed separately within the bag rather than pre-capped. This reduces packaging bulk and allows labs to assemble only what they need at the point of use, keeping unused tubes and caps clean until required.
Can these tubes stand upright without a rack?
Yes — the flat-bottom freestanding base allows the tubes to stand independently on any level bench surface, eliminating the need for a tube rack during collection, processing, capping, and labeling steps.
Are these tubes compatible with barcode label printers and LIMS scanning?
The smooth natural-body surface is compatible with standard adhesive laboratory labels and barcode scanners used in LIMS workflows, making them suitable for direct-to-tube labeling in high-throughput clinical and research environments.