Globe Scientific Diamond 5.0 mL Midi Centrifuge Tubes, Polypropylene, Graduated — Snap & Screw Cap, Sterile & RNase-Free
The Diamond Midi Centrifuge Tube bridges the gap between standard microcentrifuge and 15 mL conical formats, giving bench scientists a 5.0 mL graduated polypropylene vessel ideal for sample aliquoting, nucleic acid prep, and cell pellet collection. Molded from chemical-resistant PP with clear volume markings, this family covers attached snap, locking snap, and assembled screw-cap closures in sterile and certified nuclease-free grades.
Technical Specifications
| Product Type | Diamond Midi Centrifuge Tube |
| Volume/Size | 5.0 mL |
| Material | Polypropylene (PP) |
| Closure/Cap | Attached snap, attached locking snap, or assembled screw cap |
| Graduation | Graduated |
| Sterility | Sterile, RNase/DNase/Pyrogen-certified, or standard (varies by option) |
| Pack Size | Bag, unit, rack case or master case (see options) |
Available Options
| Natural, Attached Snap, Sterile, 200/Unit (20/Bag, 10 Bags) | 111578S |
| Natural, Attached Snap, Sterile, Case of 2,000 | 111578S |
| Natural, Attached Locking Snap, RNase/DNase/Pyr Certified, Bag of 100 | 111582LK |
| Natural, Attached Locking Snap, RNase/DNase/Pyr Certified, Case of 3,000 (30 Bags) | 111582LK |
| Blue Screw Cap, Sterile, 500/Case (25/Rack, 20 Racks) | 111580BRS |
| Red Screw Cap, Sterile, 500/Case (25/Rack, 20 Racks) | 111580RS |
Non-sterile snap-cap Diamond Midi tubes, including amber and light-blocking black, are on the Diamond Midi 5.0 mL Snap Cap Centrifuge Tubes page.
Applications
- Aliquoting and storage of buffers, reagents, and patient samples
- DNA and RNA extraction protocols requiring certified nuclease-free plastics
- Cell pellet collection and resuspension after centrifugation
- Secure transport of liquids with locking snap or leak-resistant screw caps
- Racked workflows where pre-organized tubes speed bench setup
Quality & Procurement
labsupplies.com is an authorized Globe Scientific dealer shipping from US inventory. Every bag, case, and rack carries lot numbers supporting full traceability for CAP-, CLIA-, and ISO 15189-accredited laboratories. Certified options ship with documentation confirming RNase, DNase, and pyrogen status.
Frequently Asked Questions
What is the difference between snap cap and screw cap options?
Attached snap caps open quickly for high-throughput pipetting, while assembled screw caps provide a more secure seal for transport and storage. Locking snap caps add a tab that resists accidental opening during centrifugation.
Which options are certified RNase/DNase-free?
SKU 111582LK is lot certified for RNase, DNase, and pyrogen, making it suited to nucleic acid work. The sterile snap and screw-cap options (111578S, 111580BRS, 111580RS) are gamma-sterile but not separately nuclease-certified.
Are the screw-cap tubes supplied in racks?
Yes. Both blue (111580BRS) and red (111580RS) screw-cap tubes ship 25 per cardboard rack, 20 racks per case, for 500 tubes total ready for immediate bench use.
