Borosilicate Glass Beaded Rim (Boiling) HD Test Tube, 15ml, 150x16mm x 100pcs

These 15mL heavy-walled test tubes are made from high-quality borosilicate 3.3 glass, offering excellent thermal shock resistance and durability. Ideal for centrifugation, boiling, and open flame reactions, they are perfect for science classrooms and professional labs.

Key Features:

• Material: Borosilicate 3.3 glass for thermal and chemical durability
• Heavy Wall: 2mm thickness for strength and resistance to thermal shock
• Beaded Rim: Chip and crack resistant, fire-polished for added durability
• Autoclavable: Easy to sterilise for repeated use
• Dimensions: 150mm tall, 16mm outer diameter, 12mm inner diameter
• Capacity: 15mL (0.5oz)
• Thermal Tolerances: Strain Point -515'C, Annealing Point 565'C, Softening Point 820'C
• Pack of 100: Ideal for group experiments and lab demonstrations

Designed for educational labs, these test tubes are perfect for practical experiments in chemistry, biology, and physics.