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100PK Test Tubes, 20mL, 16x150mm - Rimless - Light Wall, 1.2mm Thick - Marking Spot - Borosilicate Glass

  • 20mL (0.67oz) Test Tubes made of high quality, heavy duty, Borosilicate 3.3 glass. Each tube features white, printed specifications and a marking spot
  • Uniform wall thickness of 1mm provides excellent thermal shock resistance
  • Flat, fire polished rims make these tubes ideal for culture testing
  • Microwavable and autoclavable, with superior chemical durability. Low temperature gradient - can withstand high temperatures & thermal shocks
  • Superior chemical durability and heat tolerance. Designed for use in professional laboratories, but is an ideal choice for science classrooms and household use. Great for organization and storage of spices & craft supplies

Pack of 100 rimless Test Tubes with 20mL capacity, made of high quality borosilicate 3.3 glass. White printed specifications and marking spot. Tubes feature a fire polished, flat edge with a uniform, 1.2mm wall. Each tube measures 5.9" (150mm) tall, with an outer diameter of 0.6" (16mm). Inner diameter measures 14.8mm.

Autoclavable, with superior chemical durability. Low temperature gradient - can withstand direct flame, high temperatures & thermal shocks. Eisco Labs Borosilicate glass has the following heat tolerances: Strain Point 515°C | Annealing Point 565°C | Softening Point 820°C.

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