The mixing bulb in the neck, between the stopper and capacity ring, contains approximately one tenth of the capacity of the body and is designed to aid in dissolving or mixing the contents of the flask.
·KIMAX® flask with a graduation ring blasted on the neck
·Calibrated to contain
·With a marking spot
·Standard Taper ground glass stopper is supplied
·Replacement stopper is 850100
·Designed from ASTM Specification E288, Class A requirements
·Manufactured from 33 expansion, low extractable borosilicate glass conforming to USP Type I and ASTM E438, Type I, Class A requirements