1、Designation:D225110(Reapproved 2020)Standard Test Method forMetal Corrosion by Halogenated Organic Solvents and TheirAdmixtures1This standard is issued under the fixed designation D2251;the number immediately following the designation indicates the year oforiginal adoption or,in the case of revision
2、,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.This standard has been approved for use by agencies of the U.S.Department of Defense.1.Scope1.1 This test method covers t
3、he evaluation of the corrosive-ness to metals by halogenated organic solvents and theiradmixtures for cold cleaning applications.NOTE1The test method described herein is an adaptation of TestMethod D130.1.2 The values stated in SI units are to be regarded asstandard.No other units of measurement are
4、 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,health,and environmental practices and deter-mine the applicability of regulatory lim
5、itations prior to use.1.4 This international standard was developed in accor-dance with internationally recognized principles on standard-ization established in the Decision on Principles for theDevelopment of International Standards,Guides and Recom-mendations issued by the World Trade Organization
6、 TechnicalBarriers to Trade(TBT)Committee.2.Referenced Documents2.1 ASTM Standards:2D130 Test Method for Corrosiveness to Copper from Petro-leum Products by Copper Strip TestD235 Specification for Mineral Spirits(Petroleum Spirits)(Hydrocarbon Dry Cleaning Solvent)E2251 Specification for Liquid-in-G
7、lass ASTM Thermom-eters with Low-Hazard Precision Liquids3.Summary of Test Method3.1 Polished metal strips are immersed in a given quantityof sample and heated at reflux temperature for 60 min.At theend of this period,the metal strips are removed and examinedfor evidence of corrosion.Similar metal s
8、trips are immersed ina given quantity of sample in closed containers and held atroom temperature for 10 days.At the end of this period,thestrips are removed and examined.4.Significance and Use4.1 These tests are to be used as a guide in selecting oreliminating certain solvents or grades of solvents
9、used forcleaning or degreasing metal parts.5.Apparatus5.1 FlaskErlenmeyer flask,borosilicate glass,125 mLcapacity,with a 24/40 standard-taper joint.5.2 Reflux CondenserCondenser with a 24/40 standard-taper joint,650 mm in length.5.3 BathOil or water bath,for maintaining a temperatureslightly higher
10、than the initial boiling point of the sample.Asupport shall be provided to hold the flask upright.5.4 ThermometerAn ASTM High Distillation Thermom-eter having a range from 30 F to 760 F and conforming to therequirements for Thermometer 8F or a range from 2 C to400 C conforming to the requirements fo
11、r Thermometer 8C asprescribed in Specification E2251 or other thermometer ofsuitable design and range.5.5 Test Tubes,150 mm in length,19 mm in diameter,withstandard-taper,ground-glass stopped.6.Materials6.1 Metal StripsStrips of various metals about12in.(12 mm)in width and about 3 in.(76 mm)in lengt
12、h.Asuggested selection of metals includes copper,brass,aluminum,steel,and galvanized iron.Other metals likely to beencountered may also be used for this test.6.2 Polishing MaterialsSilicon carbide or alumina-gritpaper of varying degrees of fineness including 240-grit silicon1This test method is unde
13、r the jurisdiction of ASTM Committee D26 onHalogenated Organic Solvents and Fire Extinguishing Agents and is the directresponsibility of Subcommittee D26.04 on Test Methods.Current edition approved Jan.1,2020.Published January 2020.Originallyapproved in 1964 as D225164 T.Last previous edition approv
14、ed in 2015 asD225110(2015).DOI:10.1520/D225110R20.2For 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.Copyright ASTM I
15、nternational,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United StatesThis international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for theDevelopment of International Standards,Gu
16、ides and Recommendations issued by the World Trade Organization Technical Barriers to Trade(TBT)Committee.carbide paper or cloth;also a supply of 150-mesh siliconcarbide grain and pharmaceutical-grade absorbent cotton.6.3 Cleaning SolventNoncorrosive mineral spirits,such asSpecification D235 on hydrocarbon dry cleaning solvent.7.Preparation of Test Strips7.1 Surface PreparationRemove all surface blemishesfrom both sides of the strip with silicon carbide or alumina-gritpaper of such degree of fin
