Class A Volumetric Flask with Hexagonal Hollow Glass Stopper, 5000mL, Blue Graduations, Borosilicate Glass Glassware_Glass Test Tubes 9-inch polypropylene stirring rods with

9-inch polypropylene stirring rods with rounded ends fit small beakers and vials

plate-enclosed mechanism

and flask necks up to 55 mm across with independent thumbscrew adjustment

Seven-piece glass prism and lens set at 13mm thickness with all faces polished

the weak triprotic acid used as a pH-control agent in food-chemistry and as a chelating agent in metal-ion solutions

Class A Volumetric Flask with Hexagonal Hollow Glass Stopper, 5000mL, Blue Graduations, Borosilicate Glass Glassware_Glass Test Tubes 9-inch polypropylene stirring rods withClass A volumetric flask in heavy duty borosilicate glass holds 5000mL with hexagonal hollow glass stopper for large volume precision measurement.