1、Designation:D84911Standard Test Method forCopper Strip Corrosion by Industrial AromaticHydrocarbons1This standard is issued under the fixed designation D849;the number immediately following the designation indicates the year oforiginal adoption or,in the case of revision,the year of last revision.A
2、number in parentheses indicates the year of last reapproval.Asuperscript epsilon()indicates an editorial change since the last revision or reapproval.This standard has been approved for use by agencies of the Department of Defense.1.Scope*1.1 This test method covers the corrosiveness of industrialar
3、omatic hydrocarbons to a copper strip.NOTE1For a similar copper strip test applicable to other petroleumproducts,see Test Method D130 and Test Method D1838.1.2 The values stated in SI units are to be regarded asstandard.No other units of measurement are included in thisstandard.1.3 This standard doe
4、s 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 regulatory limitations prior to use.For specific hazardstatements,see Secti
5、on 8.2.Referenced Documents2.1 ASTM Standards:2B152/B152M Specification for Copper Sheet,Strip,Plate,and Rolled BarD130 Test Method for Corrosiveness to Copper from Petro-leum Products by Copper Strip TestD1838 Test Method for Copper Strip Corrosion by LiquefiedPetroleum(LP)GasesD4790 Terminology of
6、 Aromatic Hydrocarbons and RelatedChemicalsD6809 Guide for Quality Control and Quality AssuranceProcedures for Aromatic Hydrocarbons and Related Ma-terials2.2 Other Documents:3OSHA Regulations,29 CFR paragraphs 1910.1000 and1910.12002.3 ASTM Adjuncts:ASTM Copper Strip Corrosion Standards(13 photo li
7、tho-graphed aluminum strips;includes Test Method D130)43.Terminology3.1 See Terminology D4790 for definition of terms used inthis test method.4.Summary of Test Method4.1 A polished copper strip is immersed in 200 mL ofspecimen in a flask with a condenser and placed in boilingwater for 30 min.At the
8、end of this period,the copper strip isremoved and compared with the ASTM Copper Strip Corro-sion Standards.5.Significance and Use5.1 This test method is suitable for setting specifications,foruse as an internal quality control tool,and for use in develop-ment or research work on industrial aromatic
9、hydrocarbons andrelated materials.It also gives an indication of the presence ofcertain corrosive substances which may corrode equipment,such as acidic compounds or sulfur compounds.6.Apparatus6.1 Flask,of sufficient size to allow for refluxing 200 mLspecimen,of chemically resistant glass with flat
10、bottom andvial mouth.6.2 Glass Condenser,length may vary,with the insidediameter of the condenser tube not less than 10 mm.A cork isused to connect the flask with the condenser.A condenser andflask with ground-glass joints may also be used.1This test method is under the jurisdiction of ASTM Committe
11、e D16 onAromatic Hydrocarbons and Related Chemicals and is the direct responsibility ofSubcommittee D16.01 on Benzene,Toluene,Xylenes,Cyclohexane and TheirDerivatives.Current edition approved Feb.1,2011.Published February 2011.Originallyapproved in 1945.Last previous edition approved in 2009 as D849
12、 09.DOI:10.1520/D0849-11.2For referenced ASTM standards,visit the ASTM website,www.astm.org,orcontact ASTM Customer Service at serviceastm.org.For Annual Book of ASTMStandards volume information,refer to the standards Document Summary page onthe ASTM website.3Available from U.S.Government Printing O
13、ffice Superintendent of Documents,732 N.Capitol St.,NW,Mail Stop:SDE,Washington,DC 20401,http:/www.access.gpo.gov.4Available from ASTM International Headquarters.Request Adjunct No.ADJD0130.Names of suppliers in the United Kingdom can be obtained from theInstitute of Petroleum.Two master standards a
14、re held by the IP for reference.*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 6.3 Strip Polishing Vise,(optional),to hold the copper stripfirmly without marring the edges.
15、For convenient vises see TestMethod D130.6.4 Water Bath,of convenient design,able to maintainboiling water such that the contents of the flask are submergedduring the test.7.Reagents and Materials7.1 Wash SolventAny volatile,sulfur-free hydrocarbonsolvent may be used provided that it shows no tarnis
16、h at allwhen tested at 100C for 1 h.Iso octane(WarningSee 8.2)is a suitable solvent.7.2 Surface Preparation/Polishing Materials,00 grade orfiner steel wool or silicon carbide grit paper or cloth of varyingdegrees of fineness including 65-m(240-grit)grade;also asupply of 105-m(150-mesh)size silicon carbide grain orpowder and absorbent cotton(cotton wool).A commercialgrade is suitable,but pharmaceutical grade is most commonlyavailable and is acceptable.7.3 Copper StripsUse strips 12.5 mm 6 1 mm wi
