Class B Glass Volumetric Flask with Glass Stopper, Class B Glass Volumetric Flask with Glass Stopper features a single graduation and blue markings., Each

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Here is the corrected text: This 250 mL borosilicate glass volumetric flask features a solid glass stopper and easy-to-read blue graduations. It complies with the ASTM-E288 standard, Class B. The capacity is 250 mL, with a tolerance of ±0.240 mL. The borosilicate glass has the following heat tolerances: strain point -515°C, annealing point 565°C, and softening point 820°C. This unit is calibrated to contain. Eisco Labs manufactures its 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, ensuring they can withstand use in even the toughest laboratory environments.