Centrifuge Tubes, Conical Bottom Graduated

GISCOM Centrifuge Tubes with Conical Bottom and Graduations are precision-engineered glass tubes designed for high-speed centrifugation, sample preparation, and analytical procedures. These tubes ensure accurate measurement, efficient sedimentation, and reliable sample recovery during laboratory operations. Their robust borosilicate glass construction provides exceptional thermal and chemical durability, making them essential in research, diagnostics, pharmaceuticals, and quality control environments.

Key Features

• High-clarity borosilicate glass 3.3 for excellent visibility and accurate sample reading.
• Conical bottom design enables efficient pellet formation and complete sample recovery.
• Permanent, easy-to-read graduations for precise volume measurement.
• High mechanical strength to withstand repeated centrifugation cycles.
• Superior chemical resistance suitable for acids, alkalis, solvents, and biological samples.
• Thermal shock resistance ensures safe use during heating, cooling, or autoclaving.
• Leak-proof sealing compatibility with standard rubber or silicone stoppers (optional).
• Smooth inner surface reduces sample adhesion and contamination risks.

Material Specifications

• Material: Borosilicate Glass 3.3
• Thermal Properties: High thermal shock resistance (ΔT ~ 120°C) Continuous working temperature up to 350°C Autoclavable at 121°C
• Chemical Resistance: Excellent resistance to most chemicals, reagents, and solvents.
• Mechanical Properties: High tensile and compressive strength. Suitable for medium- to high-speed centrifugation
• Standards Compliance: Conforms to ISO 3585, ASTM E438 Type I, Class A borosilicate glass requirements.

Technical Specifications

• Available Capacities: As per the standard size table
• Design: Conical bottom, Graduated markings, Compatible with standard centrifuge rotors and racks
• Accessories (Optional): rubber stoppers, screw caps Tube racks

Handling & Precautions

• Dos: Inspect tubes for cracks before each use. Autoclave at recommended temperature only (121°C). Use appropriate tube holders or adapters in centrifuges. Clean with mild detergents to preserve markings and glass quality.
• Don’ts: Avoid sudden temperature changes to prevent thermal shock. Do not overload the centrifuge or exceed rotor-specific speed limits. Avoid abrasive cleaning tools that may scratch the glass.
• Best Practices: Allow tubes to equilibrate to room temperature before centrifugation. Use compatible caps or stoppers to prevent spillage. Store in a cool, dry place to maintain clarity and longevity.

Applications

• Chemical, Biological & Analytical Laboratories
• Pharmaceutical R&D and QA/QC sample preparation
• Biotechnology and Life Sciences workflows, like cell separation and DNA/RNA extraction
• Clinical & Diagnostic Labs for serum/plasma processing
• Universities and Research Institutes for routine teaching and experimentation
• Industrial Testing Labs for centrifugation-based analysis
  These tubes play a vital role in the daily lab workflow, where accuracy, clarity, and reliable sample recovery are crucial.