VOLUMETRIC GLASSWARE Class A with Batch Certificate Duran® Class A volumteric flasks are used to precisely measure specified amounts of liquid in conjunction with the preparation and storage of solutions. These Class A flasks are in accordance with DIN and ISO accuracy standards to contain, feature white lettering with the batch number and production date lasered onto its base. An included batch certificate documents the mean value derived from measuring the specified batch as well as the standard deviation and the date of issue. Lettering Color Certificate Type Order Code Batch Certified, Class A • Class A accuracy. • Supplied with polyethylene stopper. • White print for clear and amber glass. • Maximum recommended temperature without any change of the volume is 250°C. • Temperature resistance of PE stopper is -40°C to +80°C. Amber Flask [email protected] 1430 Northwest Boulevard P: (800) 223-4524 Vineland, NJ 08360 F: (800) 543-6752

VOLUMETRIC GLASSWARE Class A with Individual Certificate Duran® Class A volumteric flasks are used to precisely measure specified amounts of liquid in conjunction with the preparation and storage of solutions. These Class A flasks are in accordance with DIN and ISO accuracy standards to contain, feature blue lettering with the individual number and production date lasered onto its base. Each flask is tested individually and the uncertainty measurement and date of issue are recorded on the Certificate. Flask sequential numbers are 3 letters & 4 numbers (AAA-0001). Lettering Color Certificate Type...