ASTM D7318-19e1 PDF

Scope: 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 mg ⁄kg to 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, health, and environmental 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. 1.4 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

ASTM D7318-19e1 Referenced Document

ASTM D1193 Standard Specification for Reagent Water
ASTM D4052 Standard Test Method for Density and Relative Density of Liquids by Digital Density Meter
ASTM D4057 Standard Practice for Manual Sampling of Petroleum and Petroleum Products
ASTM D4177 Standard Practice for Automatic Sampling of Petroleum and Petroleum Products
ASTM D6299 Standard Practice for Applying Statistical Quality Assurance and Control Charting Techniques to Evaluate Analytical Measurement System Performance*， 2023-07-01 Update

2019 ASTM D7318-19e1 Standard Test Method for Existent Inorganic Sulfate in Ethanol by Potentiometric Titration
2019 ASTM D7318-19 Standard Test Method for Existent Inorganic Sulfate in Ethanol by Potentiometric Titration
2018 ASTM D7318-18 Standard Test Method for Existent Inorganic Sulfate in Ethanol by Potentiometric Titration
2013 ASTM D7318-13 Standard Test Method for Existent Inorganic Sulfate in Ethanol by Potentiometric Titration
2011 ASTM D7318-11 Standard Test Method for Existent Inorganic Sulfate in Ethanol by Potentiometric Titration
2007 ASTM D7318-07 Standard Test Method for Total Inorganic Sulfate in Ethanol by Potentiometric Titration