The 980018 Pyrex 27 ml test tubes with dimensions 18x150 mm, manufactured by Corning, represent a standard laboratory consumable designed for small volume liquid handling and storage. These tubes combine Pyrex glass chemistry with Corning’s reputation for durability, making them suitable for educational, clinical, and research environments.
When evaluating these test tubes, it helps to review core specifications, usage contexts, and handling guidance in a concise format.
| Specification | Value | Unit | Notes |
|---|---|---|---|
| Product Code | 980018 | - | Pyrex brand identification |
| Capacity | 27 | ml | Typical working volume for small samples |
| Dimensions | 18 | mm (OD) | Outer diameter |
| Length | 150 | mm | Total tube length |
| Material | Borosilicate glass | - | Corning PYREX brand thermal resistance |
| Sterility | Non-sterile | - | Suitable for general lab use; sterilize if required |
Physical Design and Durability of 980018 Tubes
The 18x150 mm format provides a compact footprint while allowing sufficient height for column-based procedures or stacking in standard racks. The 27 ml capacity supports precise measurement for small batches, reducing waste and improving reproducibility. Pyresil borosilicate glass contributes to thermal stability and chemical resistance, lowering the risk of cracking during routine lab temperature shifts.
Compatibility with Common Laboratory Equipment
These tubes are designed to fit securely in many standard laboratory devices, including tube rotators, vortex mixers, and centrifuge adapters that accept 18 mm outer diameter tubes. Before high-speed centrifugation, always check the centrifuge bucket and adapter clearances to prevent tube deformation or breakage, even with robust Pyrex glass.
Best Practices for Sample Storage and Handling
To maintain sample integrity, label each tube with contents, date, and researcher using a grease pencil or compatible marker. Store capped tubes upright in designated trays or racks to avoid rolling and accidental drops. When heating or cooling samples, allow gradual temperature transitions to minimize thermal stress on the glass.
Safety and Handling Guidelines
Although the tubes are chemically resistant, they are not indestructible; inspect each tube for cracks, chips, or scratches before use, especially in centrifuge applications. Always wear appropriate gloves and eye protection when handling pressurized tubes or unfiltered biological samples. Dispose of broken glass using designated sharps containers and follow institutional biohazard protocols when needed.
Key Applications and Recommendations for the 980018 Pyrex Test Tubes
- Confirm tube dimensions match your centrifuge rotor and storage racks before bulk purchase.
- Use caps or silicone stoppers to reduce evaporation and contamination during long-term storage.
- Label tubes with consistent identifiers to simplify tracking and reduce handling errors.
- Inspect glass for microcracks before high-speed centrifugation to prevent tube failure.
- Document sterilization methods when preparing for sensitive applications to maintain audit trails.
FAQ
Reader questions
Are these test tubes autoclavable?
Yes, the 980018 Pyrex tubes can withstand standard autoclave cycles, though users should verify that the caps are heat-resistant or loosened to allow pressure equalization.
Can I use these tubes for small-scale PCR reactions?
Yes, the 27 ml capacity is more than sufficient for PCR setups; however, verify that your thermal cycler accommodates 18 mm tube trays or holders to ensure proper positioning.
Do the tubes come sterile or non-sterile?
These tubes are supplied non-sterile, making them suitable for general laboratory work; users requiring sterile conditions should perform appropriate sterilization methods. Yes, they are designed for standard 18 mm rotor applications, but always check your centrifuge’s maximum RCF and tube labeling to avoid overloading or misplacement.