Serialized and Certified Volumetric Flask, Class A, Low Actinic Amber, Wide Mouth, As Per USP Standards

In compliance with ASTM E-542 and E-288, it has been calibrated to Class A tolerances. Each flask is serialized individually and comes with a Certificate of Identification and Capacity that can be traced back to NIST standards. The graduation line is clear and lasting, and the inscription is legible thanks to huge white block letters. A normal taper stopper is included. Stained glass with a low actinic content protects light-sensitive items. The flask's protective hue is an intrinsic element of the flask, which keeps PYREX brand labware's mechanical strength, chemical stability, and temperature resistance. In an ISO/IEC 17025 recognized laboratory, the product was tested and calibrated.