ASTM D7328-07e1 - 1.1.2007
 
1. Scope

1.1 This test method covers an ion chromatographic procedure for the determination of the total and potential inorganic sulfate and total inorganic chloride content in hydrous and anhydrous denatured ethanol to be used in motor fuel applications. It is intended for the analysis of ethanol samples containing between 0.55 and 20 mg/kg of total inorganic sulfate, 4.0 to 20 mg/kg of potential inorganic sulfate, and 0.75 to 50 mg/kg of total inorganic chloride.

1.2 &solely-SI-units;

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.

 
2. Referenced Documents

D1193-24

Standard Specification for Reagent Water

D6299-26

Standard Practice for Applying Statistical Quality Assurance and Control Charting Techniques to Evaluate Analytical Measurement System Performance

D4177-22e1

Standard Practice for Automatic Sampling of Petroleum and Petroleum Products (Includes all amendments and changes 3/24/2023).

D4057-22

Standard Practice for Manual Sampling of Petroleum and Petroleum Products

Ethanol as a Blending Component for PetrolDetermination of Inorganic ChlorideIon Chromatographic Method Available from International Organization for Standardization (ISO), 1 rue de Varemb, Case postale 56, CH-1211, Geneva 20, Switzerland, http://www.iso.ch.

D7318-25

Standard Test Method for Existent Inorganic Sulfate in Ethanol by Potentiometric Titration

D6792-25

Standard Practice for Quality Management Systems in Petroleum Products, Liquid Fuels, and Lubricants Testing Laboratories

D4052-22

Standard Test Method for Density, Relative Density, and API Gravity of Liquids by Digital Density Meter

D5827-22

Standard Test Method for Analysis of Engine Coolant for Chloride and Other Anions by Ion Chromatography

D7319-26

Standard Test Method for Determination of Existent and Potential Sulfate and Inorganic Chloride in Fuel Ethanol and Butanol by Direct Injection Suppressed Ion Chromatography