1、Designation:D331606(Reapproved 2022)Standard Test Method forStability of Perchloroethylene with Copper1This standard is issued under the fixed designation D3316;the number immediately following the designation indicates the year oforiginal adoption or,in the case of revision,the year of last revisio
2、n.A number in parentheses indicates the year of last reapproval.Asuperscript epsilon()indicates an editorial change since the last revision or reapproval.1.Scope1.1 This test method covers the evaluation of the corrosive-ness to copper metal by perchloroethylene.1.2 The values stated in SI units are
3、 to be regarded asstandard.No other 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,health,and environmental
4、practices and deter-mine the applicability of regulatory limitations 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
5、 and Recom-mendations issued by the World Trade Organization TechnicalBarriers to Trade(TBT)Committee.2.Referenced Documents2.1 ASTM Standards:2E200 Practice for Preparation,Standardization,and Storageof Standard and Reagent Solutions for Chemical Analysis3.Summary of Test Method3.1 Clean copper str
6、ips are subjected to the action of liquidand vapor phases of boiling perchloroethylene for 72 h in thepresence of light.Weight loss of copper strips and acidformation are determined at the end of the test period.4.Significance and Use4.1 This test method is to be used as a guide in selecting orelimi
7、nating certain grades of perchloroethylene used for dry-cleaning fabrics or degreasing metal parts.5.Apparatus5.1 Flask,300 mL,24/40 standard-taper joint.5.2 Soxhlet Extractor,30 mm inside diameter,24/40standard-taper bottom joint,34/45 standard-taper upper joint.5.3 Allihn Condenser,bulb type,34/45
8、 standard-taper bot-tom joint.5.4 Bottle,wide-mouth,8 oz.5.5 Funnel,8 mm outside diameter stem,35 mm diameteropening.5.6 Heater,variable control.5.7 Light Bulb,100 W.5.8 Beaker,400 mL.5.9 Analytical Balance.6.Reagents and Materials6.1 Purity of ReagentsReagent grade chemicals shall beused in all tes
9、ts.Unless otherwise indicated,it is intended thatall reagents shall conform to the specifications of the Commit-tee on Analytical Reagents of the American Chemical Society,where such specifications are available.3Other grades may beused,provided it is first ascertained that the reagent is ofsufficie
10、ntly high purity to permit its use without lessening theaccuracy of the determination.6.2 Purity of WaterUnless otherwise indicated,referencesto water shall be understood to mean distilled water or water ofequal purity.6.3 Acetone,practical grade.6.4 Copper,electrolytic foil,0.05 mm thick.Cut threec
11、opper strips,20 mm by 75 mm.Immerse the strips inconcentrated HCl until the surface is bright and free of tarnish.Scribe consecutive identification numbers on the strips.Rinsethoroughly in running water and dry with a towel.Weigh thestrips to the nearest 0.1 mg on an analytical balance.1This test me
12、thod is under 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 May 1,2022.Published May 2022.Originallyapproved in 1974.Last previous edition approved in
13、 2016 as D3316-06(2016).DOI:10.1520/D3316-06R22.2For 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.3Reagent Chemicals
14、,American Chemical Society Specifications,AmericanChemical Society,Washington,DC.For suggestions on the testing of reagents notlisted by the American Chemical Society,see Analar Standards for LaboratoryChemicals,BDH Ltd.,Poole,Dorset,U.K.,and the United States Pharmacopeiaand National Formulary,U.S.
15、Pharmacopeial Convention,Inc.(USP),Rockville,MD.Copyright ASTM International,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 Decisio
16、n on Principles for theDevelopment of International Standards,Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade(TBT)Committee.16.5 Hydrochloric Acid(sp gr 1.19)Concentrated hydro-chloric acid(HCl).Handle the concentrated HCl solution asindicated in the suppliers direction.6.6 Sodium Hydroxide,Standard Solution(0.01 N 60.001)Dissolve 0.4 g 6 0.04 g of anhydrous sodium hydrox-ide(NaOH)in 1 L of water and standardize in accordance withPractice E200.6.7 Ph
