- All products
- Consumables
- 50 or 15mL Conical Centrifuge Tubes
- Consumables
Description
Key Features
Specifications
Storage & Handling
FAQs
Product Description
Sterile polypropylene conical centrifuge tubes designed for everyday centrifugation, sample processing, and storage workflows. Available in 15 mL and 50 mL formats, each tube features uniform wall thickness for a stable centrifugal effect and black easy-to-read graduation markings for accurate volume measurement at a glance.
A large white writing area on each tube allows clear, permanent sample labeling directly on the tube — reducing the need for additional labels during routine workflows. The blue screw cap provides a secure, reliable seal for centrifugation and storage applications. Tubes are autoclavable to 121°C at 15 PSI for 15 minutes and freezable to -80°C for long-term sample storage.
For critical applications requiring the highest level of elemental purity, our metal-free centrifuge tubes are manufactured from pure polypropylene and receive special processing to ensure trace metal concentrations remain below 1 ppb. Verified by ICP-MS analysis across more than 21 interfering trace metals — ideal for trace metal studies, environmental analysis, and any application where metal contamination would compromise results.
Racked Format
Reusable Autoclavable Rack
Tubes are packaged in a reusable, autoclavable, and freezable (-80°C) interlocking polypropylene rack. Racks connect together to create a customized bench workstation — reducing clutter and improving workflow organization.
Bagged Format
Ergonomic Collapsible Bag
Self-sealing bag design for convenient lab use. Collapsible storage bags are made from recycled materials — a more sustainable option for labs looking to reduce their environmental footprint without compromising on convenience.
Key Features & Benefits
- Available in 15 mL and 50 mL — standard formats for routine centrifugation, sample processing, and storage applications
- Uniform wall thickness — ensures a stable centrifugal effect and consistent performance at up to 15,000 × g
- Black easy-to-read graduation markings — clear, accurate volume indicators for quick visual confirmation during sample preparation
- Large white writing area — provides ample space for permanent sample identification directly on the tube without additional labels
- Blue screw cap — secure, reliable seal for centrifugation, incubation, and storage workflows
- Conical base — optimizes pellet formation and recovery during centrifugation
- Racked format — reusable autoclavable rack — interlocking polypropylene racks are autoclavable and freezable to -80°C, connecting together to build a custom bench workstation
- Bagged format — sustainable self-sealing bag — ergonomic collapsible bags made from recycled materials for a more environmentally conscious lab setup
- Autoclavable — tubes withstand autoclaving at 121°C at 15 PSI for 15 minutes for re-sterilization workflows
- Freezable to -80°C — suitable for ultra-low temperature long-term sample storage
- Metal-free option for critical applications — pure polypropylene tubes with special processing verified by ICP-MS analysis to ensure more than 21 interfering trace metals are kept below 1 ppb — ideal for trace metal studies and environmental analysis
- Sterile — gamma irradiated, dose verification per ISO 11137, SAL 10⁻⁶
♻️ Bagged format tubes are packaged in collapsible bags made from recycled materials — a simple way to reduce plastic waste in your lab without changing your workflow.
Specifications
| Specification | Detail |
|---|---|
| Material | Virgin polypropylene |
| Available Sizes | 15 mL | 50 mL |
| Cap Type | Screw cap |
| Cap Color | Blue |
| Base Design | Conical base for optimized pellet formation |
| Wall Thickness | Uniform — stable centrifugal effect |
| Max Centrifugation Speed | 15,000 × g |
| Graduation Markings | ✓ Yes — black, easy to read |
| Writing Area | ✓ Yes — large white writing area |
| Packaging Formats | Rack (25 tubes/rack) | Bag (25 tubes/bag) |
| Units per Case | 500 tubes per case |
| Rack Material | Polypropylene — reusable |
| Rack Autoclavable | ✓ Yes |
| Rack Freezable | ✓ Yes — to -80°C |
| Rack Interlocking | ✓ Yes — builds bench workstation |
| Bag Material | Recycled materials — collapsible, self-sealing |
| Autoclavable | ✓ Yes — 121°C, 15 PSI, 15 minutes |
| Freezable | ✓ Yes — to -80°C |
| Metal-Free Option | Available — pure PP, ICP-MS verified <1 ppb for 21+ trace metals |
| Sterility Assurance Level | SAL 10⁻⁶ |
| Quality System | Manufactured under ISO 13485 |
| Biocompatibility | Meets USP Class VI requirements |
| RNase / DNase-free | ✓ Certified |
| Human DNA-free | ✓ Certified |
| Pyrogen-free | ✓ Certified |
| ATP-free | ✓ Certified |
| Sterile | ✓ Yes |
Storage & Handling
- Store in original sealed packaging in a clean, dry environment away from direct sunlight and UV exposure
- Maintain storage temperature between 15°C and 30°C (59°F – 86°F)
- Keep away from excessive humidity
- Do not use tubes from damaged or previously opened packaging
- Handle with gloves using standard aseptic technique when working with sterile samples
- Ensure cap is tightened securely before centrifugation
- Do not exceed maximum centrifugation speed of 15,000 × g
- Tubes are autoclavable at 121°C, 15 PSI for 15 minutes — allow to cool completely before handling after autoclaving
- Freezable to -80°C — suitable for ultra-low temperature long-term sample storage
- Inspect tubes for cracks or damage before use — do not use damaged tubes in centrifugation
- Dispose of used tubes in accordance with your institution's biosafety waste disposal guidelines
⚠️ Do not exceed 15,000 × g — exceeding the rated centrifugation speed may cause tube failure. Always inspect tubes for cracks or stress marks before use.
Frequently Asked Questions
What does metal-free mean and when do I need it?
Metal-free centrifuge tubes are manufactured from pure polypropylene and receive special processing to eliminate trace metal contamination. ICP-MS analysis verifies that concentrations of more than 21 interfering trace metals are kept below 1 ppb. These tubes are recommended for trace metal analysis, environmental studies, mass spectrometry sample preparation, and any application where metal contamination at ppb levels would interfere with results.
Can these tubes be autoclaved?
Yes — these polypropylene tubes are autoclavable at 121°C at 15 PSI for 15 minutes. Allow tubes to cool completely before handling after autoclaving. Note that autoclaving sterile tubes is not necessary for routine use as they are pre-sterilized by gamma irradiation at the factory.
What is the maximum centrifugation speed for these tubes?
Both the 15 mL and 50 mL tubes are rated for up to 15,000 × g. Do not exceed this speed as it may compromise tube integrity. Always inspect tubes for cracks or stress marks before centrifugation.
What is the difference between the racked and bagged format?
Both formats contain 25 tubes per unit and 500 tubes per case — the difference is in the packaging. Racked tubes come in a reusable, autoclavable, interlocking polypropylene rack that can be frozen to -80°C and connected with other racks to build a bench workstation. Bagged tubes come in a self-sealing, collapsible bag made from recycled materials — a more sustainable option for labs that don't require the rack system.
Can the polypropylene racks be autoclaved?
Yes — the polypropylene racks included with the racked format are fully autoclavable and can be reused indefinitely. They are also freezable to -80°C, making them suitable for long-term sample storage applications as well as bench use.
How do the interlocking racks work?
The racks are designed with an interlocking connection system that allows multiple racks to snap together side by side, creating a stable, customized bench workstation. This keeps tubes organized, reduces the risk of tipping, and makes it easy to scale your workspace as your sample volume grows.
Are these tubes suitable for long-term sample storage?
Yes. The polypropylene construction and secure screw cap make these tubes suitable for both short and long-term sample storage. Tubes are freezable to -80°C for ultra-low temperature storage workflows. The racked format racks are also freezable to -80°C, keeping samples organized during storage.
Are Certificates of Analysis available?
Yes — Certificates of Analysis (COA) are available upon request for all conical centrifuge tubes. Each lot is tested and certified RNase-, DNase-, Human DNA-, ATP-, and Pyrogen-free, manufactured under ISO 13485, and meets USP Class VI biocompatibility requirements. Contact us with your lot number for documentation.
Description
Key Features
Specifications
Storage & Handling
FAQs
Product Description
Sterile polypropylene conical centrifuge tubes designed for everyday centrifugation, sample processing, and storage workflows. Available in 15 mL and 50 mL formats, each tube features uniform wall thickness for a stable centrifugal effect and black easy-to-read graduation markings for accurate volume measurement at a glance.
A large white writing area on each tube allows clear, permanent sample labeling directly on the tube — reducing the need for additional labels during routine workflows. The blue screw cap provides a secure, reliable seal for centrifugation and storage applications. Tubes are autoclavable to 121°C at 15 PSI for 15 minutes and freezable to -80°C for long-term sample storage.
For critical applications requiring the highest level of elemental purity, our metal-free centrifuge tubes are manufactured from pure polypropylene and receive special processing to ensure trace metal concentrations remain below 1 ppb. Verified by ICP-MS analysis across more than 21 interfering trace metals — ideal for trace metal studies, environmental analysis, and any application where metal contamination would compromise results.
Racked Format
Reusable Autoclavable Rack
Tubes are packaged in a reusable, autoclavable, and freezable (-80°C) interlocking polypropylene rack. Racks connect together to create a customized bench workstation — reducing clutter and improving workflow organization.
Bagged Format
Ergonomic Collapsible Bag
Self-sealing bag design for convenient lab use. Collapsible storage bags are made from recycled materials — a more sustainable option for labs looking to reduce their environmental footprint without compromising on convenience.
Key Features & Benefits
- Available in 15 mL and 50 mL — standard formats for routine centrifugation, sample processing, and storage applications
- Uniform wall thickness — ensures a stable centrifugal effect and consistent performance at up to 15,000 × g
- Black easy-to-read graduation markings — clear, accurate volume indicators for quick visual confirmation during sample preparation
- Large white writing area — provides ample space for permanent sample identification directly on the tube without additional labels
- Blue screw cap — secure, reliable seal for centrifugation, incubation, and storage workflows
- Conical base — optimizes pellet formation and recovery during centrifugation
- Racked format — reusable autoclavable rack — interlocking polypropylene racks are autoclavable and freezable to -80°C, connecting together to build a custom bench workstation
- Bagged format — sustainable self-sealing bag — ergonomic collapsible bags made from recycled materials for a more environmentally conscious lab setup
- Autoclavable — tubes withstand autoclaving at 121°C at 15 PSI for 15 minutes for re-sterilization workflows
- Freezable to -80°C — suitable for ultra-low temperature long-term sample storage
- Metal-free option for critical applications — pure polypropylene tubes with special processing verified by ICP-MS analysis to ensure more than 21 interfering trace metals are kept below 1 ppb — ideal for trace metal studies and environmental analysis
- Sterile — gamma irradiated, dose verification per ISO 11137, SAL 10⁻⁶
♻️ Bagged format tubes are packaged in collapsible bags made from recycled materials — a simple way to reduce plastic waste in your lab without changing your workflow.
Specifications
| Specification | Detail |
|---|---|
| Material | Virgin polypropylene |
| Available Sizes | 15 mL | 50 mL |
| Cap Type | Screw cap |
| Cap Color | Blue |
| Base Design | Conical base for optimized pellet formation |
| Wall Thickness | Uniform — stable centrifugal effect |
| Max Centrifugation Speed | 15,000 × g |
| Graduation Markings | ✓ Yes — black, easy to read |
| Writing Area | ✓ Yes — large white writing area |
| Packaging Formats | Rack (25 tubes/rack) | Bag (25 tubes/bag) |
| Units per Case | 500 tubes per case |
| Rack Material | Polypropylene — reusable |
| Rack Autoclavable | ✓ Yes |
| Rack Freezable | ✓ Yes — to -80°C |
| Rack Interlocking | ✓ Yes — builds bench workstation |
| Bag Material | Recycled materials — collapsible, self-sealing |
| Autoclavable | ✓ Yes — 121°C, 15 PSI, 15 minutes |
| Freezable | ✓ Yes — to -80°C |
| Metal-Free Option | Available — pure PP, ICP-MS verified <1 ppb for 21+ trace metals |
| Sterility Assurance Level | SAL 10⁻⁶ |
| Quality System | Manufactured under ISO 13485 |
| Biocompatibility | Meets USP Class VI requirements |
| RNase / DNase-free | ✓ Certified |
| Human DNA-free | ✓ Certified |
| Pyrogen-free | ✓ Certified |
| ATP-free | ✓ Certified |
| Sterile | ✓ Yes |
Storage & Handling
- Store in original sealed packaging in a clean, dry environment away from direct sunlight and UV exposure
- Maintain storage temperature between 15°C and 30°C (59°F – 86°F)
- Keep away from excessive humidity
- Do not use tubes from damaged or previously opened packaging
- Handle with gloves using standard aseptic technique when working with sterile samples
- Ensure cap is tightened securely before centrifugation
- Do not exceed maximum centrifugation speed of 15,000 × g
- Tubes are autoclavable at 121°C, 15 PSI for 15 minutes — allow to cool completely before handling after autoclaving
- Freezable to -80°C — suitable for ultra-low temperature long-term sample storage
- Inspect tubes for cracks or damage before use — do not use damaged tubes in centrifugation
- Dispose of used tubes in accordance with your institution's biosafety waste disposal guidelines
⚠️ Do not exceed 15,000 × g — exceeding the rated centrifugation speed may cause tube failure. Always inspect tubes for cracks or stress marks before use.
Frequently Asked Questions
What does metal-free mean and when do I need it?
Metal-free centrifuge tubes are manufactured from pure polypropylene and receive special processing to eliminate trace metal contamination. ICP-MS analysis verifies that concentrations of more than 21 interfering trace metals are kept below 1 ppb. These tubes are recommended for trace metal analysis, environmental studies, mass spectrometry sample preparation, and any application where metal contamination at ppb levels would interfere with results.
Can these tubes be autoclaved?
Yes — these polypropylene tubes are autoclavable at 121°C at 15 PSI for 15 minutes. Allow tubes to cool completely before handling after autoclaving. Note that autoclaving sterile tubes is not necessary for routine use as they are pre-sterilized by gamma irradiation at the factory.
What is the maximum centrifugation speed for these tubes?
Both the 15 mL and 50 mL tubes are rated for up to 15,000 × g. Do not exceed this speed as it may compromise tube integrity. Always inspect tubes for cracks or stress marks before centrifugation.
What is the difference between the racked and bagged format?
Both formats contain 25 tubes per unit and 500 tubes per case — the difference is in the packaging. Racked tubes come in a reusable, autoclavable, interlocking polypropylene rack that can be frozen to -80°C and connected with other racks to build a bench workstation. Bagged tubes come in a self-sealing, collapsible bag made from recycled materials — a more sustainable option for labs that don't require the rack system.
Can the polypropylene racks be autoclaved?
Yes — the polypropylene racks included with the racked format are fully autoclavable and can be reused indefinitely. They are also freezable to -80°C, making them suitable for long-term sample storage applications as well as bench use.
How do the interlocking racks work?
The racks are designed with an interlocking connection system that allows multiple racks to snap together side by side, creating a stable, customized bench workstation. This keeps tubes organized, reduces the risk of tipping, and makes it easy to scale your workspace as your sample volume grows.
Are these tubes suitable for long-term sample storage?
Yes. The polypropylene construction and secure screw cap make these tubes suitable for both short and long-term sample storage. Tubes are freezable to -80°C for ultra-low temperature storage workflows. The racked format racks are also freezable to -80°C, keeping samples organized during storage.
Are Certificates of Analysis available?
Yes — Certificates of Analysis (COA) are available upon request for all conical centrifuge tubes. Each lot is tested and certified RNase-, DNase-, Human DNA-, ATP-, and Pyrogen-free, manufactured under ISO 13485, and meets USP Class VI biocompatibility requirements. Contact us with your lot number for documentation.
Packaging & Format Reference — click to expand
▼
| Size | Format | Tubes per Rack / Bag |
Units per Case |
Tube Autoclavable |
Tube Freezable |
Rack Autoclavable |
|---|---|---|---|---|---|---|
| 15 mL | Rack | 25 | 500 | ✓ 121°C / 15 PSI | ✓ to -80°C | ✓ Yes |
| 15 mL | Bag | 25 | 500 | ✓ 121°C / 15 PSI | ✓ to -80°C | — |
| 50 mL | Rack | 25 | 500 | ✓ 121°C / 15 PSI | ✓ to -80°C | ✓ Yes |
| 50 mL | Bag | 25 | 500 | ✓ 121°C / 15 PSI | ✓ to -80°C | — |
| 15 mL Metal-Free | Rack | 25 | 500 | ✓ 121°C / 15 PSI | ✓ to -80°C | ✓ Yes |
| 15 mL Metal-Free | Bag | 25 | 500 | ✓ 121°C / 15 PSI | ✓ to -80°C | — |
| 50 mL Metal-Free | Rack | 25 | 500 | ✓ 121°C / 15 PSI | ✓ to -80°C | ✓ Yes |
| 50 mL Metal-Free | Bag | 25 | 500 | ✓ 121°C / 15 PSI | ✓ to -80°C | — |
15 mL
Rack
Tubes / Rack
25
Units / Case
500
Tube Autoclavable
✓ 121°C / 15 PSI
Tube Freezable
✓ to -80°C
Rack Autoclavable
✓ Yes
15 mL
Bag
Tubes / Bag
25
Units / Case
500
Tube Autoclavable
✓ 121°C / 15 PSI
Tube Freezable
✓ to -80°C
Rack Autoclavable
— (Bag format)
50 mL
Rack
Tubes / Rack
25
Units / Case
500
Tube Autoclavable
✓ 121°C / 15 PSI
Tube Freezable
✓ to -80°C
Rack Autoclavable
✓ Yes
50 mL
Bag
Tubes / Bag
25
Units / Case
500
Tube Autoclavable
✓ 121°C / 15 PSI
Tube Freezable
✓ to -80°C
Rack Autoclavable
— (Bag format)
15 mL Metal-Free
Rack
Tubes / Rack
25
Units / Case
500
Tube Autoclavable
✓ 121°C / 15 PSI
Tube Freezable
✓ to -80°C
Rack Autoclavable
✓ Yes
15 mL Metal-Free
Bag
Tubes / Bag
25
Units / Case
500
Tube Autoclavable
✓ 121°C / 15 PSI
Tube Freezable
✓ to -80°C
Rack Autoclavable
— (Bag format)
50 mL Metal-Free
Rack
Tubes / Rack
25
Units / Case
500
Tube Autoclavable
✓ 121°C / 15 PSI
Tube Freezable
✓ to -80°C
Rack Autoclavable
✓ Yes
50 mL Metal-Free
Bag
Tubes / Bag
25
Units / Case
500
Tube Autoclavable
✓ 121°C / 15 PSI
Tube Freezable
✓ to -80°C
Rack Autoclavable
— (Bag format)
* Racked format racks are reusable, autoclavable polypropylene with interlocking design. Bagged format uses collapsible self-sealing bags made from recycled materials. Both formats contain 25 tubes per rack/bag and 500 tubes per case. Metal-free tubes (15 mL and 50 mL) feature a conical bottom with skirt for self-standing use and are rated to 3,500 × g — ICP-MS verified for 21+ trace metals below 1 ppb.
Packaging & Format Reference — click to expand
▼
| Size | Format | Tubes per Rack / Bag |
Units per Case |
Tube Autoclavable |
Tube Freezable |
Rack Autoclavable |
|---|---|---|---|---|---|---|
| 15 mL | Rack | 25 | 500 | ✓ 121°C / 15 PSI | ✓ to -80°C | ✓ Yes |
| 15 mL | Bag | 25 | 500 | ✓ 121°C / 15 PSI | ✓ to -80°C | — |
| 50 mL | Rack | 25 | 500 | ✓ 121°C / 15 PSI | ✓ to -80°C | ✓ Yes |
| 50 mL | Bag | 25 | 500 | ✓ 121°C / 15 PSI | ✓ to -80°C | — |
| 15 mL Metal-Free | Rack | 25 | 500 | ✓ 121°C / 15 PSI | ✓ to -80°C | ✓ Yes |
| 15 mL Metal-Free | Bag | 25 | 500 | ✓ 121°C / 15 PSI | ✓ to -80°C | — |
| 50 mL Metal-Free | Rack | 25 | 500 | ✓ 121°C / 15 PSI | ✓ to -80°C | ✓ Yes |
| 50 mL Metal-Free | Bag | 25 | 500 | ✓ 121°C / 15 PSI | ✓ to -80°C | — |
15 mL
Rack
Tubes / Rack
25
Units / Case
500
Tube Autoclavable
✓ 121°C / 15 PSI
Tube Freezable
✓ to -80°C
Rack Autoclavable
✓ Yes
15 mL
Bag
Tubes / Bag
25
Units / Case
500
Tube Autoclavable
✓ 121°C / 15 PSI
Tube Freezable
✓ to -80°C
Rack Autoclavable
— (Bag format)
50 mL
Rack
Tubes / Rack
25
Units / Case
500
Tube Autoclavable
✓ 121°C / 15 PSI
Tube Freezable
✓ to -80°C
Rack Autoclavable
✓ Yes
50 mL
Bag
Tubes / Bag
25
Units / Case
500
Tube Autoclavable
✓ 121°C / 15 PSI
Tube Freezable
✓ to -80°C
Rack Autoclavable
— (Bag format)
15 mL Metal-Free
Rack
Tubes / Rack
25
Units / Case
500
Tube Autoclavable
✓ 121°C / 15 PSI
Tube Freezable
✓ to -80°C
Rack Autoclavable
✓ Yes
15 mL Metal-Free
Bag
Tubes / Bag
25
Units / Case
500
Tube Autoclavable
✓ 121°C / 15 PSI
Tube Freezable
✓ to -80°C
Rack Autoclavable
— (Bag format)
50 mL Metal-Free
Rack
Tubes / Rack
25
Units / Case
500
Tube Autoclavable
✓ 121°C / 15 PSI
Tube Freezable
✓ to -80°C
Rack Autoclavable
✓ Yes
50 mL Metal-Free
Bag
Tubes / Bag
25
Units / Case
500
Tube Autoclavable
✓ 121°C / 15 PSI
Tube Freezable
✓ to -80°C
Rack Autoclavable
— (Bag format)
* Racked format racks are reusable, autoclavable polypropylene with interlocking design. Bagged format uses collapsible self-sealing bags made from recycled materials. Both formats contain 25 tubes per rack/bag and 500 tubes per case. Metal-free tubes (15 mL and 50 mL) feature a conical bottom with skirt for self-standing use and are rated to 3,500 × g — ICP-MS verified for 21+ trace metals below 1 ppb.
Frequently Bought Together
These other products might interest you