Glass Erlenmeyer Flasks, Narrow Neck, Graduated conical flasks made from high-quality borosilicate 3.3 glass., Dozen of 12

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Here is the corrected text: • 250mL Capacity • Pack of 12 Erlenmeyer Flasks, each with a 250mL capacity and easy-to-read white enamel graduations every 50mL. • Industrial Quality • Made of high-quality, heavy-duty borosilicate 3.3 glass with excellent strength against breakage. These flasks are microwavable and autoclavable, with superior chemical durability that can withstand high temperatures and thermal shocks. • Superior Durability • The flasks feature uniform wall thickness ideal for heating and a reinforced rim for protection against high impacts. • Meets DIN ISO Standards • Conforms to DIN ISO 1773 standards for narrow-neck conical flasks. • Great for Professional Laboratories, Classrooms & Household • These Erlenmeyer flasks offer superior chemical durability and heat tolerance. Designed for use in professional laboratories, they are also an ideal choice for science classrooms and household use. Pack of 12 Erlenmeyer Flasks with a 250mL capacity and narrow neck is made of heavy-duty borosilicate 3.3 glass. The flasks feature white enamel graduations every 50mL, a uniform wall thickness ideal for heating, and a reinforced rim to protect against accidental impacts. They meet DIN ISO 1773 standards for conical flasks, are autoclavable, and have superior chemical durability. With a low temperature gradient, they can withstand high temperatures and thermal shocks. Eisco Labs borosilicate glass has the following heat tolerances: Strain Point 515°C, Annealing Point 565°C, Softening Point 820°C. The neck inner diameter is 28.8mm, and the neck outer diameter is 33.7mm.