1.1 ,This test method covers a direct injection ion chromatographic procedure for determining existent and potential inorganic sulfate and total inorganic chloride content in hydrous and anhydrous denatured ethanol and butanol to be used in motor fuel applications. It is intended for the analysis of ethanol and butanol samples containing between 1.0 ,mg/kg to 20 mg/kg of existent or potential inorganic sulfate and 1.0 ,mg/kg to 50 mg/kg of inorganic chloride.
Note 1: ,Tertiary butanol is not included in this test method. 1-butanol, 2-butanol, and isobutanol are included in the testing and research report for this test method.