Class B Glass Volumetric Flask with Glass Stopper, Class B Glass Volumetric Flask with Glass Stopper features a single graduation and blue markings., Each

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Volumetric Flask Set, 3 Pieces, Class B, ASTM, 250mL, 500mL & 1000mL, Glass Stopper, Blue Graduation. This set includes three premium quality borosilicate glass volumetric flasks with glass stoppers. All are in compliance with ASTM-E288 standard. Tolerance ±0.100 ml. Includes 1000mL, 500mL, 250mL flasks with glass stoppers. Borosilicate glass has the following heat tolerances: Strain Point -515°C | Annealing Point 565°C | Softening Point 820°C.