ASTM-D7318 › Standard Test Method for Existent Inorganic Sulfate in Ethanol by Potentiometric Titration
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1.1 This test method covers a potentiometric titration procedure for determining the existent inorganic sulfate content of hydrous, anhydrous ethanol, and anhydrous denatured ethanol, which is added as a blending agent with spark ignition fuels. It is intended for the analysis of denatured ethanol samples containing between 1.0–20 mg/kg existent inorganic sulfate.
1.2 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.
1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. Material Safety Data Sheets are available for reagents and materials. Review them for hazards prior to usage.
ethanol; existent inorganic sulfate; lead; potentiometric; sulfate; titration; ICS Number Code 71.040.40 (Chemical analysis); 75.160.20 (Liquid fuels)
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Aug. 15, 2013