48PK Test Tubes, 15ml, Superior Heat & Chemical Durability
- Eisco CH0718G, EISCO CH0718G 100PK Test Tubes, 50ml Beaded Rim is a set of 100 test tubes made from high quality Borosilicate 3.3 Glass. 50ml capacity. Tubes feature uniform, 1.2mm walls & beaded rims. Each tube measures 5.9" (150mm) tall, with an outer diameter of 0.95" (24mm). Inner diameter measures 22.8mm. Accommodates stoppers with a bottom diameter of 20-21mm & top diameter of 24-26mm. (Compatible stoppers can be found by searching ASIN: B07CZ1MFVH & B07N6NLLC8). 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. EISCO CH0718G 100PK Test Tubes, 50ml Beaded Rim