Rimmed Borosilicate Glass Test Tubes, Pack of 48

Details

Here is the corrected text: Set of 48 test tubes made from high-quality Borosilicate 3.3 glass, each with a 7ml capacity. The tubes feature uniform 1mm walls and beaded rims. Each tube measures 4 inches (100mm) tall, with an outer diameter of 0.5 inches (12mm), and an inner diameter of 11mm. They accommodate stoppers with a bottom diameter of 9-10mm and a top diameter of 13-15mm (compatible stoppers can be found by searching ASIN: B07CZ4FPZ8 and ASIN: B013TMXT7Q). The tubes are autoclavable, with superior chemical durability and a low temperature gradient, allowing them to withstand direct flame, high temperatures, and thermal shocks. Eisco Labs Borosilicate glass has the following heat tolerances: strain point -515°C, annealing point 565°C, and softening point 820°C. Eisco Labs proudly manufactures its own products using state-of-the-art equipment and adheres to the highest standards of quality control. Each product is carefully designed by a team of laboratory professionals and experienced engineers with quality and durability in mind. They are manufactured from only the highest-grade raw materials, according to international quality standards, to ensure they can withstand use in even the toughest laboratory environments.