Accuracy and traceability Pyrex volumetric flasks, uality class A glassware for laboratory analysis and dilutions, supplied in a wide range of sizes. The base of each flask is laser etched with a unique batch number and date of manufacture that can be used to download a batch certificate from our website. Complies with ISO 1042 and DIN 12664 Calibrated to the tolerance required by the United States Pharmacopoeia (USP) which is tighter than those of ISO/DIN standards Each flask is laser etched with an individual serial number batch code and date of manufacture Batch certificate available to download online Conformity 'H', certified Manufactured from chemically resistant Pyrex® glass Inscriptions in white enamel Polyethylene stopper

Accuracy and traceability Pyrex volumetric flasks, uality class A glassware for laboratory analysis and dilutions, supplied in a wide range of sizes. The base of each flask is laser etched with a unique batch number and date of manufacture that can be used to download a batch certificate from our website. Complies with ISO 1042 and DIN 12664 Calibrated to the tolerance required by the United States Pharmacopoeia (USP) which is tighter than those of ISO/DIN standards Each flask is laser etched with an individual serial number batch code and date of manufacture Batch certificate available to download online Conformity 'H', certified Manufactured from chemically resistant Pyrex® glass Inscriptions in white enamel Polyethylene stopper