ASTM_D_1722_-_09_2017.pdf

Designation:D172209(Reapproved 2017)Standard Test Method forWater Miscibility of Water-Soluble Solvents1This standard is issued under the fixed designation D1722;the number immediately following the designation indicates the year oforiginal adoption or,in the case of revision,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 the determination of the misci-bility of water-soluble solvents with water.While writtenspecificallyfortestingacetone,isopropylalcohol(isopropanol),and methyl alcohol(methanol),the method issuitable for testing most water-soluble solvents.1.2 This test method serves to detect water-immisciblecontaminants qualitatively;the level of detection of theseimpurities varies widely with both the type of solvent and thetype of impurity.1.3 The level of detection of water-insoluble materialsdepends upon the solvent tested and the type of impurity orimpurities present,that is paraffin,olefin,aromatic,highmolecular weight alcohol,or ketone,etc.There is,therefore,nospecific level of impurity detected by this procedure.NOTE1This test method is normally performed at ambient,but othertemperatures may be used as specified by the consumer and supplier.1.4 The values stated in SI units are to be regarded asstandard.No other units of measurement are included in thisstandard.1.5 For specific hazard information and guidance,consultthe suppliers Safety Data Sheet for materials listed in this testmethod.1.6 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 limitations prior to use.1.7 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 TechnicalBarriers to Trade(TBT)Committee.2.Referenced Documents2.1 ASTM Standards:2D1193 Specification for Reagent Water3.Summary of Method3.1 The specimen is diluted to 10 volumes with water andthe resulting mixture examined for cloudiness or turbidity.4.Significance and Use4.1 Water-insoluble materials present in a solvent expectedto be completely water miscible may interfere with many usesof the solvent.This test method provides a measure of themiscibility of water-soluble solvents with a polar medium-water.It also provides a qualitative indication of the presenceor absence of water-immiscible contaminants.4.2 The results of this test method may be used in assessingcompliance with a specification.Prior to agreeing to this testmethod as the basis of a specification requirement,it may bedesirable that the interpretation of what constitutes cloudinessor turbidity be agreed upon between the supplier and thepurchaser.5.Apparatus5.1 Cylinder,graduated,glass-stoppered,250-mL.6.Reagent6.1 WaterReferences to water shall be understood to meanreagent water conforming to Type IV or better of SpecificationD1193.7.Procedure7.1 Transfer 25 mL of the sample to one of two clean250-mL graduated cylinders,dilute to the 250-mL mark withwater,and mix thoroughly.Allow any bubbles to rise to thesurface.7.2 Add 250 mL of water to the second cylinder and reserveas a blank.1This test method is under the jurisdiction of ASTM Committee D01 on Paintand Related Coatings,Materials,and Applications and is the direct responsibility ofSubcommittee D01.35 on Solvents,Plasticizers,and Chemical Intermediates.Current edition approved Dec.1,2017.Published December 2017.Originallyapproved in 1960.Last previous edition approved in 2009 as D1722 09.DOI:10.1520/D1722-09R17.2For 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 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 Decision on Principles for theDevelopment of International Standards,Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade(TBT)Committee.1 7.3 Compare the specimen solution with the water blank byviewing through the length of the column of liquid toward adark background.When an artificial light source is used,position the light so that it passes transversely through thecylinders.8.Report8.1 If the specimen-water mixture is as free of cloudiness orturbidity as the bla