ASTM_D_1901_-_10_2020.pdf

Designation:D190110(Reapproved 2020)Standard Test Method forRelative Evaporation Time of Halogenated Organic Solventsand Their Admixtures1This standard is issued under the fixed designation D1901;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 measurement of the relativeevaporation time of halogenated organic solvents and theiradmixtures.This test method is not applicable in the presenceof excessive drafts or high-velocity air currents.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 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.1.4 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 TechnicalBarriers to Trade(TBT)Committee.2.Referenced Documents2.1 ASTM Standards:2B209 Specification for Aluminum and Aluminum-AlloySheet and Plate3.Terminology3.1 Definitions:3.1.1 admixturea blend of a halogenated hydrocarbonwith a nonhalogenated hydrocarbon(for example,mineralspirits).4.Summary of Test Method4.1 The evaporation rate is determined by measuring thetime required for complete evaporation of a thin film of thesolvent from a sheet-metal panel in comparison with a refer-ence standard solvent.5.Significance and Use5.1 This test method gives valid comparisons of the evapo-ration rates of the subject materials.These comparisons arerequired for the determination of the suitability of a proposedmaterial for specific cleaning applications.6.Apparatus6.1 Test PanelA 1 mm by 100 mm by 150 mm panel ofaluminum,AA Alloy 6061,3Temper T4 or T6,having ahorizontal scribe mark across the width of the panel 25 mmfrom one 100 mm edge.6.2 Support Base to hold the panel at 60 6 1 from thehorizontal.6.3 Stopwatch,or electric interval timer.6.4 Graduate,10 mL,with pouring lip.7.Reagents7.1 Perchloroethylene,initial boiling point 121 C,boilingrange 2 C,purity 99%.7.2 p-Xylene,99%.8.Procedure8.1 Place a clean,water-break-free test panel on the supportbase at an angle of 60 6 1 from the horizontal,with the scribemark at the lower end of the panel(Note 1).Using thegraduate,pour 10 mL of the material under test over the testpanel,being sure to get complete coverage of the entireexposed surface.As soon as the 10 mLof test material has beenpoured,observe the upper edge of the panel for a break in the1This test method 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 April 1,2020.Published April 2020.Originallyapproved in 1961 as D1901 61 T.Last previous edition approved in 2015 asD190110(2015).DOI:10.1520/D190110R20.2For 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.3Aluminum Association alloy designation in accordance with ASTM Specifica-tion B209,for Aluminum-Alloy Sheet and Plate,Annual Book of ASTM Standards,Vol 02.02.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.continuity of coverage.Start the timing at the first sign of abreak in liquid film coverage on the upper edge of the panel.Stop the timing when the last portion of film has receded belowthe scribe mark(Note 2).This interval between the first sign ofincomplete coverage and the receding of the last portion of filmbelow the scribe mark is referred to as the“dry time.”NOTE1By placing a double thickness of paper toweling under the testpanel and support base,solvent runoff from the panel is absorbed.The useof fresh paper toweling after each individual test prevents saturation of thetest area with solvent vapors and gives more reproducible results.NOTE2Stray intermittent drafts must be av