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Standard Test Method for Existent Inorganic Sulfate in Ethanol by Potentiometric Titration
Automaticky přeložený název:
Standardní zkušební metoda pro neexistující anorganické sulfátu v ethanolu potenciometrické titrace
NORMA vydána dne 15.6.2013
Označení normy: ASTM D7318-13
Poznámka: NEPLATNÁ
Datum vydání normy: 15.6.2013
Kód zboží: NS-38153
Počet stran: 6
Přibližná hmotnost: 18 g (0.04 liber)
Země: Americká technická norma
Kategorie: Technické normy ASTM
Keywords:
ethanol, existent inorganic sulfate, lead, potentiometric, sulfate, titration, ICS Number Code 71.040.40 (Chemical analysis), 75.160.20 (Liquid fuels)
Significance and Use | ||||||||||
5.1 Ethanol is used as a blending agent added to gasoline. Sulfates are indicated in filter plugging deposits and fuel injector deposits. When fuel ethanol is burned, sulfates may contribute to sulfuric acid emissions. Ethanol acceptability for use depends on the sulfate content. Sulfate content, as measured by this test method, can be used as one measure of determination of the acceptability of ethanol for automotive spark-ignition engine fuel use. |
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1. 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 1.0–20 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.
Standard Practice for Manual Sampling of
Petroleum and Petroleum Products Standard Practice for Automatic Sampling
of Petroleum and Petroleum Products (Includes all amendments and
changes 3/24/2023). Standard Test Method for Density,
Relative Density, and API Gravity of Liquids by Digital Density
Meter Standard Specification for Reagent
Water Standard Practice for Applying
Statistical Quality Assurance and Control Charting Techniques to
Evaluate Analytical Measurement System Performance (Includes all
amendments and changes 12/12/2023). |
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