12PK Erlenmeyer Flasks, 250mL - Narrow Neck - Borosilicate Glass

• 250mL CAPACITY || Pack of 12 Erlenmeyer Flasks, each with 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. Microwavable and autoclavable, with superior chemical durability. Can withstand high temperatures and thermal shocks
• SUPERIOR DURABILITY || Features uniform wall thickness ideal for heating and a reinforced rim for protection against high impacts
• MEETS DIN ISO STANDARDS || Conforms with DIN ISO 1773 standards for narrow neck conical flasks
• GREAT FOR PROFESSIONAL LABORATORIES, CLASSROOMS & HOUSEHOLD || Superior chemical durability and heat tolerance. Designed for use in professional laboratories, but is an ideal choice for science classrooms and household use

Pack of 12 Erlenmeyer Flask with a 250mL capacity and narrow neck is made of heavy-duty borosilicate 3.3 glass. Features white enamel graduations every 50mL, a uniform wall thickness ideal for heating, and a reinforced rim to protect against accidental impacts. Meets DIN ISO 1773 standards for conical flasks.

Autoclavable, with superior chemical durability. Low temperature gradient - can withstand 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.

Neck inner diameter: 28.8mm

Neck outer diameter: 33.7mm