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Standard Test Method for Determination of MTBE, ETBE, TAME, DIPE, Methanol, Ethanol and tert-Butanol in Gasoline by Infrared Spectroscopy
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NORM herausgegeben am 1.10.2016
Bezeichnung normen: ASTM D5845-01(2016)
Anmerkung: UNGÜLTIG
Ausgabedatum normen: 1.10.2016
SKU: NS-668343
Zahl der Seiten: 5
Gewicht ca.: 15 g (0.03 Pfund)
Land: Amerikanische technische Norm
Kategorie: Technische Normen ASTM
Keywords:
alcohols, diisopropyl ether, ethanol, ethers, ethyl tert-butyl ether, methanol, methyl tert-butyl ether, motor gasoline, oxygenate, tert-amyl methyl ether, tert-butanol,, ICS Number Code 75.160.20 (Liquid fuels)
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. |
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1. Scope | ||||||||||||||||
1.1 This test method covers the determination of methanol, ethanol, tert-butanol, methyl tert-butyl ether (MTBE), ethyl 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. |
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2. Referenced Documents | ||||||||||||||||
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