ASTM_G_136_-_03_2009.pdf

Designation:G13603(Reapproved 2009)Standard Practice forDetermination of Soluble Residual Contaminants inMaterials by Ultrasonic Extraction1This standard is issued under the fixed designation G136;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.1.Scope1.1 This practice may be used to extract nonvolatile andsemivolatile residues from materials such as new and usedgloves,new and used wipes,component soft goods,and soforth.When used with proposed cleaning materials(wipes,gloves,and so forth),this practice may be used to determinethe potential of the proposed solvent or other fluids to extractcontaminants(plasticizers,residual detergents,brighteners,and so forth.)and deposit them on the surface being cleaned.1.2 This practice is not suitable for the evaluation ofparticulate contamination.1.3 The values stated in SI units are to be regarded standard.No other units of measurement are included in this standard.1.4 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 and health practices and determine the applica-bility of regulatory limitations prior to use.2.Referenced Documents2.1 ASTM Standards:2D1193 Specification for Reagent WaterE1235 Test Method for Gravimetric Determination of Non-volatile Residue(NVR)in Environmentally ControlledAreas for SpacecraftF324 Test Method for Nonvolatile Residue of VolatileCleaning Solvents Using the Solvent Purity Meter(With-drawn 1987)3F331 Test Method for Nonvolatile Residue of Solvent Ex-tract from Aerospace Components(Using Flash Evapora-tor)3.Terminology3.1 Definitions of Terms Specific to This Standard:3.1.1 contaminant(contamination),nunwanted molecularand particulate matter that could affect or degrade the perfor-mance of the components upon which they reside.3.1.2 contaminate,va process of contaminating.3.1.3 nonvolatile residue(NVR),nresidual molecular andparticulate matter remaining following the filtration and con-trolled evaporation of liquid containing contaminants.3.1.4 particle(particulate contaminant),na piece of mat-ter in a solid state with observable length,width,and thickness.3.1.4.1 DiscussionThe size of a particle is usually definedby its greatest dimension and is specified in micrometres.3.1.5 molecularcontaminant(non-particulatecontamination),nthe molecular contaminant may be in agaseous,liquid,or solid state.3.1.5.1 DiscussionA molecular contaminant may be uni-formly or nonuniformly distributed,or be in the form ofdroplets.Molecular contaminants account for most of theNVR.3.1.6 degas,vthe process of removing gases from a liquid.4.Summary of Practice4.1 A material,glove,hand wipe,and so forth,is placed ina container containing the test fluid.This container is thenplaced in an ultrasonic cleaning bath and treated for a givenperiod of time at the recommended temperature for the testfluid.This results in either a solution if the contaminant issoluble in the test fluid or an emulsion if the contaminant is notsoluble in the test fluid.The test fluid may then be analyzed fornonvolatile residue that was extracted from the test specimen.4.1.1 In the case of aqueous-based agents,the material maybe treated in accordance with Specification D1193 Type IIwater or Type II water containing an extracting agent.4.1.1.1 When Type II water is used,the water and materialmay be analyzed without further treatment.Typical methods ofanalysis may include weighing the material before and aftertreatment or more sophisticated analytical procedures such astotal carbon(TC)or high-pressure liquid chromatography.4.1.1.2 When cleaning agents are used,the materials arerinsed with Type II water after the removal from the cleaning1This practice is under the jurisdiction of ASTM Committee G04 on Compat-ibility and Sensitivity of Materials in Oxygen Enriched Atmospheres and is thedirect responsibility of Subcommittee G04.02 on Recommended Practices.Current edition approved April 1,2009.Published September 2009.Originallyapproved in 1995.Last previous edition approved in 2003 as G136 03.DOI:10.1520/G0136-03R09.2For referenced ASTM standards,visit the ASTM website,www.astm.org,orcontact ASTM Customer Service at serviceastm.org.For Annual Book of ASTMStandardsvolume information,refer to the standards Document Summary page onthe ASTM website.3The last approved version of this historical standard is referenced onwww.astm.org.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 bath and then ultrasonically cleaned in reagent water to ensurethe removal of the extracting agent.Typical methods ofanalysis may include weighing the material before and aftercleaning or more sop