Description:

• CALIBRATION QR CODE ON FLASK : Scan the QR code printed directly on the body of the flask to retrieve a PDF of the calibration batch certificate. Works best if you hold the flask over a solid black background.
• INDUSTRIAL STRENGTH : Made of high quality, heavy duty, borosilicate 3.3 glass. It is microwavable and autoclavable, and can withstand high temperatures and thermal shocks.
• 25mL CAPACITY : Flask has a 25mL capacity and features a single white graduation mark. Class A tolerance, ±0.040mL. Mouth has an 8.5mm inner diameter. Flask size: 1.63″ diameter x 4.5″ tall.
• POLYETHYLENE STOPPER : The flask has an NS10/19 size socket fitted with an inert, chemically-resistant polyethylene stopper. This lightweight stopper is durable and flexible, designed to provide a secure seal even after repeated use.
• CLASS A AMBER GLASS : Conforms to ISO 1042 standards. Amber glass protects the contents from UV and blue light, preventing photodegradation and other light-induced reactions.

Volumetric flask made from high-quality borosilicate 3.3 amber glass suitable for holding light sensitive chemicals with a single white graduation marking its 25mL capacity. Features an industry-leading feature: a QR code printed on its surface, allowing you to effortlessly scan and retrieve a PDF of the calibration batch certificate.Class A tolerance at ±0.040mL conforms to ISO 1042 standards for accuracy. The flask is equipped with an NS10/19 size socket fitted with a chemically-resistant polyethylene stopper.

Autoclavable, with superior chemical durability. Low temperature gradient – 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.