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ASTM D5845 - 01(2016)
Standard Test Method for Determination of MTBE, ETBE, TAME, DIPE, Methanol, Ethanol and tert -Butanol in Gasoline by Infrared Spectroscopy
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More D02.04.0F Standards Related Products Standard References
Significance and Use
5.1 Alcohols and ethers are added to gasoline to produce a reformulated lower emissions gasoline. Alcohols and ethers may also be added to gasoline to increase the octane number. Type and concentration of various oxygenates are specified and regulated to ensure acceptable commercial gasoline quality. Driveability, vapor pressure, phase separation, and evaporative emissions are some of the concerns associated with oxygenated fuels.
5.2 This test method is faster, simpler, less expensive and more portable than current methods.
5.3 This test method may be applicable for quality control in the production of gasoline.
5.4 This test method is not suitable for testing for compliance with federal regulations.3
5.5 False positive readings for some of the samples tested in the round robin were sometimes observed. As only extreme base gasolines were tested in the round robin, no definitive statement can be made as to the expected frequency or magnitude of false positives expected in a wider range of base gasolines.
1. Scope
1.1 This test method covers the determination of methanol, ethanol, tert-butanol, methyl tert-butyl ether (MTBE), ethyl tert-butyl ether (ETBE), tert-amyl methyl ether (TAME), and diisopropyl ether (DIPE) in gasoline by infrared spectroscopy. The test method is suitable for determining methanol from 0.1 to 6 mass %, ethanol from 0.1 to 11 mass %, tert-butanol from 0.1 to 14 mass %, and DIPE, MTBE, ETBE and TAME from 0.1 to 20 mass %.
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.
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
ASTM Standards
D1298 Test Method for Density, Relative Density, or API Gravity of Crude Petroleum and Liquid Petroleum Products by Hydrometer Method
D4052 Test Method for Density, Relative Density, and API Gravity of Liquids by Digital Density Meter
D4057 Practice for Manual Sampling of Petroleum and Petroleum Products
D4307 Practice for Preparation of Liquid Blends for Use as Analytical Standards
D4815 Test Method for Determination of MTBE, ETBE, TAME, DIPE, tertiary-Amyl Alcohol and C1 to C4 Alcohols in Gasoline by Gas Chromatography
D5599 Test Method for Determination of Oxygenates in Gasoline by Gas Chromatography and Oxygen Selective Flame Ionization Detection
E1655 Practices for Infrared Multivariate Quantitative Analysis
Other Standard
GC/OFID EPA Test Method—Oxygen and OxygenatICS Code
ICS Number Code 75.160.20 (Liquid fuels)
UNSPSC Code
UNSPSC Code 15101506(Gasoline or Petrol)
Referencing This Standard
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DOI: 10.1520/D5845-01R16
Citation Format
ASTM D5845-01(2016), Standard Test Method for Determination of MTBE, ETBE, TAME, DIPE, Methanol, Ethanol and