Glass Capillary Tubes for Microbiology – Blue Capped

Precision Glass Capillary Tubes (Borosilicate, 75mm)

The Apex Labs Glass Capillary Tubes are precision-engineered for micro-volume liquid handling, micro-hematocrit tests, and melting point determinations. Crafted from high-purity borosilicate glass, these tubes provide excellent chemical resistance and thermal stability. Available in two distinct types—heparinized (red-coded) to prevent blood clotting during collection, and non-heparinized (blue-coded) for general laboratory use—they are essential tools for diagnostic and research settings. Each tube features fire-polished ends for safe, efficient sample handling.

Product Specification & Direct Ordering

Technical Specifications

• Material: Borosilicate Glass (Type 1)
• Length: 75 mm (Standard)
• Inside Diameter: 1.1 mm – 1.2 mm
• Outside Diameter: 1.5 mm – 1.6 mm
• Packaging: Vials of 100
• Sterility: Available in Sterile / Non-Sterile
• Supplier: Apex Labs, Varanasi, Uttar Pradesh

Performance Highlights

• High Precision: Uniform bore diameter ensures accurate capillary action and consistent volume collection.
• Borosilicate 3.3 Glass: Superior clarity and resistance to thermal shock and chemical corrosion.
• Color-Coded Ends: Easy identification between treated (Heparin / red) and untreated (plain / blue) tubes.
• Fire-Polished Ends: Smooth edges prevent damage to samples and reduce the risk of injury during handling.

Primary Sector Applications

• Hematology: Micro-hematocrit determinations and blood gas analysis.
• Microbiology: Precise transfer of minute microbial cultures or reagents.
• Chemistry: Melting point capillary tubes for identifying crystalline substances.
• Sample Collection: Harvesting small volumes of liquid via capillary action without external pumps.