Description
| Catalog No. | Capacity ml | OD X Length mm |
| 11200/1 | 5 | 16 x 75 |
| 11200/2 | 10 | 16 x125 |
| 11200/3 | 15 | 16 x 150 |
| 11200/4 | 20 | 18 x 150 |
| 11200/5 | 30 | 25 x 100 |
| 11200/5.1 | – | 25 x 150 |
| 11200/6 | 60 | 25 x 200 |
MEDILAB Round Bottom Culture Media Tubes are precision-formed glass tubes designed for the preparation, cultivation, and storage of culture media, microbial samples, and various laboratory specimens. Their uniform geometry and high-purity material ensure consistent performance in routine and advanced microbiological workflows. Widely used in research, pharmaceuticals, biotechnology, QC/QA, and academic laboratories, these tubes support reliable culturing, heating, and incubation processes. Their durability and clarity make them essential for high-accuracy experimental work.
Key Features
- Round bottom design for uniform heat distribution and efficient mixing.
- High-transparency borosilicate glass for clear visibility of media, cultures, and sedimentation.
- Excellent thermal and chemical resistance suitable for autoclaving, heating, and sterilisation cycles.
- Precision-formed edges for compatibility with cotton plugs, screw caps, and rubber stoppers.
- Non-porous, smooth inner surface minimises contamination retention and ensures easy cleaning.
- High durability, withstands repeated use in demanding laboratory workflows.
- Leak-resistant construction enables secure storage and transport of cultures and samples.
- Available in multiple sizes to support diverse experimental requirements.
Material Specifications
- Material: Borosilicate Glass 3.3
- Thermal Properties: High thermal shock resistance, Low thermal expansion coefficient (~3.3 × 10⁻⁶ /K,), Suitable for direct flame heating (within recommended limits)
- Chemical Resistance: Inert to most acids, alkalis, solvents, and biological media. Non-reactive surface ensures accurate results
- Mechanical Properties: Strong structural integrity, crack- and scratch-resistant under routine handling
- Standards Compliance: Manufactured in accordance with ISO 3585 (Borosilicate Glass 3.3 Quality Standard)
Technical Specifications
- Available Sizes / Capacities: As per the standard size table
- Dimensions: Tubes available in multiple lengths and diameters (e.g., Ø 12 mm, 16 mm, 18 mm, 20 mm, etc.)
- Tolerance: Each tube is manufactured with consistent dimensional accuracy suitable for standard plug and cap sizes.
- Finish Options: Plain rim, Screw-thread neck, With or without marking spot
- Calibration: Not applicable (non-graduated tubes).
Handling & Precautions
- Safe Use: Handle with care, avoiding sudden drops or impacts.
- Cleaning: Wash with mild laboratory detergents; avoid abrasive scrubbers.
- Autoclaving: Safe for autoclaving at 121°C for 15–20 minutes; ensure caps/plugs are loosened.
- Heating: Suitable for heating over spirit burners or heating blocks; avoid rapid temperature changes.
- Dos: Inspect for cracks before use. Use appropriate racks or holders. Allow gradual cooling after sterilisation.
- Don’ts: Do not subject tubes to open flame heating without gradual warming. Do not freeze liquid-filled tubes. Do not overtighten screw caps during sterilisation.
- Best Practices: Maintain proper drying after wash cycles and store upright to prevent contamination.
Applications
- Microbiology: Media preparation, inoculation, culturing, and incubation.
- Pharma & Biotechnology: Sample storage, organism culturing, suspension preparation.
- QC/QA Laboratories: Routine quality analysis, microbial load testing, and sedimentation tests.
- Academic & Research Labs: Teaching experiments, biochemical studies, and research culture work.
- Chemical & Environmental Labs: Sample collection, centrifugation compatibility (size-dependent).
These tubes play an essential role in maintaining sterile, reliable, and contamination-free workflows.
