Tubes Culture Media, Round Bottom

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.