Pyrex® Volumetric Flask, Class A, amber, USP/ISO/DIN tolerances, 5 mL

Complies with ISO 1042 and DIN 12664, Manufactured from borosilicate glass 3.3, Calibrated to the tolerance required by the United States Pharmacopoeia (USP) which are tighter than those of ISO/DIN standards, With an amber coating on exterior surfaces to facilitate use with light sensitive solutions, Inscriptions in white enamel, Each flask is laser etched with an individual serial number batch code and date of manufacture, Batch certificate available to download online. UKAS certified volumetric flasks are available on request.