This is a 500 mL class A Bomex brand borosilicate glass volumetric flask with single ground-in graduation mark. A volumetric flask is used to prepare a solution of fixed volume very accurately.
Flask specifications...
- Accuracy: ± 0.25 mL at 20°C (68°F).
- Joint: Tapered glass ground joint size NS 19/17.
- Stopper: Hollow polypropylene with octagonal grip and sealing ribs.
- Dimensions: 9-3/4" H x 3-3/4" Diam. (247mm x 95mm).