It is a precision laboratory vessel designed for exact volume measurements. Made from high-quality Boro 3.3 glass, this Class A BLAUBRAND flask ensures outstanding chemical and thermal resistance. It features three calibration marks for added flexibility and a NS 14/23 ground joint for secure stopper fitting. The supplied polypropylene (PP) stopper guarantees leak-free sealing, and the flask is DAkkS-tested for premium accuracy. Specially designed for compatibility with Dispensette systems, this flask is ideal for laboratories requiring certified volumetric precision.