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ASTM_D_7618_-_13.pdf

1、Designation:D761813Standard Specification forEthyl Tertiary-Butyl Ether(ETBE)for Blending with AviationSpark-Ignition Engine Fuel1This standard is issued under the fixed designation D7618;the number immediately following the designation indicates the year oforiginal adoption or,in the case of revisi

2、on,the year of last revision.A number in parentheses indicates the year of last reapproval.Asuperscript epsilon()indicates an editorial change since the last revision or reapproval.1.Scope*1.1 This specification covers requirements for fuel gradeethyl tertiary-butyl ether(ETBE)that may be used for b

3、lendingwith fuels for aviation spark-ignition engines where permis-sible.Other ETBE grades available in the marketplace that donot comply with the requirements of this specification,are notsuitable for blending with aviation fuels.1.2 The values stated in SI units are to be regarded asstandard.No ot

4、her units of measurement are included in thisstandard.1.3 This standard does not purport to address all of thesafety concerns,if any,associated with its use.It is theresponsibility of the user of this standard to establish appro-priate safety and health practices and determine the applica-bility of

5、regulatory limitations prior to use.2.Referenced Documents2.1 ASTM Standards:2D130 Test Method for Corrosiveness to Copper from Petro-leum Products by Copper Strip TestD156 Test Method for Saybolt Color of Petroleum Products(Saybolt Chromometer Method)D381 Test Method for Gum Content in Fuels by Jet

6、 Evapo-rationD1298 Test Method for Density,Relative Density,or APIGravity of Crude Petroleum and Liquid Petroleum Prod-ucts by Hydrometer MethodD4052 Test Method for Density,Relative Density,and APIGravity of Liquids by Digital Density MeterD4057 Practice for Manual Sampling of Petroleum andPetroleu

7、m ProductsD4171 Specification for Fuel System Icing InhibitorsD4176 Test Method for Free Water and Particulate Contami-nation in Distillate Fuels(Visual Inspection Procedures)D4177 Practice for Automatic Sampling of Petroleum andPetroleum ProductsD5854 Practice for Mixing and Handling of Liquid Samp

8、lesof Petroleum and Petroleum ProductsD7796 Test Method for Analysis of Ethyl tert-Butyl Ether(ETBE)by Gas ChromatographyE203 Test Method for Water Using Volumetric Karl FischerTitrationE300 Practice for Sampling Industrial ChemicalsE1064 Test Method for Water in Organic Liquids by Coulo-metric Karl

9、 Fischer Titration3.Terminology3.1 Definitions:3.1.1 ethanol,nchemical compound C2H5OH.3.1.2 methanol,nchemical compound CH3OH.3.1.3 ethyl tertiary-butyl ether(ETBE),nchemical com-pound CH3CH2OC(CH3)3.3.1.4 tertiary-butyl alcohol(TBA),nchemical compound(CH3)3COH.3.1.5 methyl tertiary-butyl ether(MTB

10、E),nchemical com-pound CH3OC(CH3)3.3.1.6 oxygenate,noxygen-containing ashless,organiccompound,such as an alcohol or ether,which may be used asa fuel or fuel supplement.4.Detailed Requirements4.1 ETBE that may be used for blending with fuels foraviation spark-ignition engines shall conform to the req

11、uire-ments of Table 1.5.Workmanship5.1 The ETBE shall be visually free of undissolved water,sediment,and suspended matter.It shall be clear and bright atthe ambient temperature or 21C,whichever is lower.5.2 The specification defines only a basic purity for thisproduct.The product shall be free of an

12、y adulterant orcontaminant that could render the material unacceptable for theintended application.1This specification is under the jurisdiction of ASTM Committee D02 onPetroleum Products and Lubricants and is the direct responsibility of SubcommitteeD02.J0 on Aviation Fuels.Current edition approved

13、 May 1,2013.Published August 2013.Originallyapproved in 2010.Last previous edition approved in 2010 as D7618 10.DOI:10.1520/D7618-13.2For referenced ASTM standards,visit the ASTM website,www.astm.org,orcontact ASTM Customer Service at serviceastm.org.For Annual Book of ASTMStandards volume informati

14、on,refer to the standards Document Summary page onthe ASTM website.*A Summary of Changes section appears at the end of this standardCopyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 6.Sampling,Containers,and Sample Handling6.1 The user is s

15、trongly advised to review all intended testmethods prior to sampling in order to understand the impor-tance and effects of sampling technique,proper containers,andspecial handling required for each test method.6.2 Correct sampling procedures are critical to obtain asample representative of the lot i

16、ntended to be tested.Use ofappropriate procedures in Practice D4057 or Practice E300 formanual method sampling and in Practice D4177 for automaticmethod sampling as applicable.6.3 The correct sample volume and appropriate containerselection are important decisions that can impact test results.Refer to Practice D5854 for procedures on container selectionand sample mixing and handling.Where practical,ETBEshould be sampled in glass containers.If samples must becollected in metal containers,do not u

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