Merck, SLW3152/12A-5EA, Pyrex®Volumetric flask, heavy duty, class A, amber, USP/ISO/DIN tolerances,

General description
Complies with ISO 1042 and DIN 12664
Calibrated to the tolerance required by the United States Pharmacopoeia (USP) which are tighter than those of ISO/DIN standards
Manufactured from borosilicate glass with an amber coating on exterior surfaces to facilitate use with light sensitive solutions
Each flask is laser etched with an individual serial number, batch code and date of manufacturer

Features and Benefits
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.

Legal Information
PYREX is a registered trademark of Corning, Inc.