Glass Test Tube 12×75 mm – Durable Laboratory Tubes for Sample Handling

The glass test tube 12×75 mm is a fundamental laboratory item used in medical diagnostics, clinical testing, and research applications. Designed from high-quality borosilicate or soda lime glass, this test tube ensures high chemical resistance, thermal durability, and clarity for visual monitoring.

With dimensions of 12 mm diameter and 75 mm length, this glass tube offers a typical capacity of around 4–5 ml, making it suitable for small volume sample handling, heating, or reagent mixing. Unlike disposable plastic tubes, the glass test tube 12×75 mm is reusable, autoclavable, and perfect for laboratories seeking sustainable, long-term labware solutions.

Its round-bottom design allows for even heating during experiments, while the smooth inner walls support accurate sample transfer with minimal residue. The uniform thickness of the glass ensures durability during centrifugation (with proper adapters) or flame exposure in microbiology, chemistry, or hematology applications.

Key advantages of using glass test tube 12×75 mm:

• Reusable and eco-friendly

• Resistant to heat, acids, alkalis, and organic solvents

• Crystal clear body for visual observation of reactions

• Autoclavable for sterilization and safe reuse

• Compatible with flame heating, centrifugation, and racks

Applications include:

• Heating or boiling chemical solutions

• Microbiology culture growth

• Blood sample testing in hematology

• Mixing reagents in diagnostic procedures

• Educational lab experiments in schools and universities

TPT Medical offers glass test tubes 12×75 mm that meet the stringent standards of medical labs and research institutions. Available in bulk packs, these tubes are designed to support everyday lab procedures where chemical resistance and heat tolerance are critical.

Whether used for clinical chemistry, pathology, or academic training, the glass test tube 12×75 mm delivers reliable performance, long service life, and cost-effectiveness.