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 250mL Erlenmeyer Flasks with narrow necks are made of heavy-duty borosilicate 3.3 glass. Features white enamal graduations every 50mL, a uniform wall thickness ideal for he