30 mm Test Tube Rack — 21-Position, Red PPC, Individual/Unassembled (240-3204-R8SI)
This Caplugs® Evergreen test tube rack holds 21 tubes in the 30 mm diameter format, constructed from impact-resistant polypropylene copolymer (PPC) in a bold red color for immediate visual identification at the bench. Supplied as an individual, unassembled unit, it is well suited for clinical laboratories, research institutions, blood banks, and biotech workstations that require organized, stable tube holding during processing, incubation, or storage. The unassembled format keeps storage footprint minimal and allows labs to purchase exactly the quantity needed without excess inventory.
Technical Specifications
| Specification | Value |
|---|---|
| Part Number (MPN) | 240-3204-R8SI |
| Product Type | Test Tube Rack |
| Tube Size | 30 mm |
| Number of Positions | 21 |
| Material | Polypropylene Copolymer (PPC) |
| Color | Red |
| Sterility | Non-Sterile |
| Format | Individual, Unassembled |
| Pack Size | 1 rack/unit |
| BPA / Phthalate-Free | Yes |
| Country of Origin | USA |
Applications
- Clinical chemistry specimen organization during batched run processing
- Hematology and microbiology workstations requiring stable 30 mm tube holding
- Blood bank and serology workflows where color-coded rack assignment reduces sample routing errors
- Culture tube organization during incubation in research and biotech laboratories
- STAT or priority specimen staging, using red color coding to flag urgent samples at a glance
- Industrial quality control labs handling 30 mm format tubes for reagent or sample management
Chemical Resistance
| Reagent / Condition | Compatibility |
|---|---|
| Aqueous buffers / saline | Excellent |
| Dilute acids and bases | Excellent |
| Alcohols (ethanol, isopropanol) | Good — suitable for routine disinfection |
| Common laboratory disinfectants | Good |
| Autoclaving | Compatible — PPC withstands standard autoclave cycles |
| Chlorinated / aromatic solvents | Not recommended for prolonged exposure |
Quality & Procurement
Made in USA, these racks are manufactured by Caplugs® Evergreen from BPA-free, phthalate-free polypropylene copolymer resin with lot numbering for full traceability — an important consideration for CAP-, CLIA-, and ISO 15189-accredited laboratories. LabSupplies.com is an authorized dealer of Caplugs® Evergreen consumables and ships from USA inventory, with individual-unit purchasing available so labs can match order quantity precisely to their workflow needs. Volume and institutional pricing is available upon request.
Frequently Asked Questions
What tube diameter does this rack accept?
These racks are designed for 30 mm diameter test tubes and culture tubes. Verify your tube outer diameter before ordering, as Caplugs® Evergreen offers racks in multiple tube-size formats.
Is the rack supplied assembled and ready to use?
No — each unit ships unassembled, which reduces shipping volume and allows compact storage. The rack assembles quickly for immediate bench use and can be disassembled again for storage or transport when not in use.
Can these racks be autoclaved between runs?
Yes. Polypropylene copolymer construction is compatible with standard autoclave cycles, making these racks suitable for reusable applications in environments that require regular sterilization or high-level disinfection.
Why choose a red rack rather than a natural or white one?
Red provides an immediately recognizable visual cue at the bench. Many clinical and research labs assign specific rack colors to STAT specimens, priority assay categories, or designated reagent groups, and the bold red color of these racks integrates naturally into color-coded tube management workflows to reduce misidentification errors.