PYREX®, borosilicate glass, with PE stopper.

• Calibrated to the tolerances required by the United States Pharmacopoeia (USP), which are tighter than those of ISO/DIN standards
• Each flask is laser etched with individual serial number and date of manufacture
• Calibrated to contain (TC, In)
• White enamel inscriptions

Complies with ISO 1042 and DIN 12664.