Narrow mouth, low form flasks are made from sturdy, thick walled borosilicate glass with a low coefficient of expansion for high thermal shock resistance and excellent mechanical strength. Heavy duty, chip resistant rim. White permanent graduations and large marking square. 50 ml flask has 10 ml graduation intervals, 125 & 250 ml flasks have 25 ml graduation intervals, and 500 & 1000 ml flasks have 50 ml graduation intervals. Accuracy ±5% of full capacity. Meets ASTM E-1404 Type I, Class 1 Specifications.
Texas customers must have a Texas DPS permit or exemption to purchase this item. Please email us for details.