Kimble kimax iodine flasks kimble kimax 250 ml is flask used in the analysis of dry shellac and shellac varnishes with wijs iodine monochloride solution and may be used to determine the total iodine value of oils, fatty acids and bodied oils with rosenmund-kuhnhenn reagent (astm d1541, withdrawn 2006.) the 500 ml is used in the testing of drying oils for use in paints and varnishes, either with wijs solution or with hanus iodine-bromine solution (astm d555, withdrawn 2007.) supplied with size 22, yellow-handled ptfe stopper heights shown below are without stopper designed from astm specification e1404, type ii, class iii requirements manufactured from 33 expansion, low extractable borosilicate glass conforming to usp type i and astm e438, type i, class a requirements. Warning: this product can expose you to chemicals including tetrafluoroethylene, which are known to the state of california to cause cancer. Prop 65 warning