It is a precision instrument designed for accurate volume measurements in laboratory settings. Manufactured from high-quality Boro 3.3 glass, this Class A flask ensures excellent chemical resistance and durability. It features a 1000 ml capacity with a NS 24/29 ground joint and comes equipped with a polypropylene (PP) stopper for secure sealing. Each flask is individually calibrated to contain (TC, In) according to DIN EN ISO 1042 standards and is supplied with an ISO individual certificate, ensuring traceability and compliance with quality standards.