1、Designation:D141716(Reapproved 2021)Standard Test Methods forRubber LaticesSynthetic1This standard is issued under the fixed designation D1417;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 pare
2、ntheses indicates the year of last reapproval.Asuperscript epsilon()indicates an editorial change since the last revision or reapproval.1.Scope1.1 These test methods cover test procedures for syntheticrubber latices ABR,BR,CR,IIR,IR,NBR,NCR,NIR,PBR,PSBR,SBR,SCR,SIR,synthetic rubber latices having su
3、bsti-tute carboxylic acid(COOH)groups on the polymer chain(X),and synthetic rubber latices that are reinforced(Y).Exceptionsto the above are noted in the individual test procedures.Thetest methods include procedures for sampling,and for deter-mining total solids,volatile unsaturates(residual styrene
4、),pHvalue,surface tension,viscosity,coagulum,bound styrene,Mooney viscosity,mechanical stability,polystyrene reinforce-ment in contained polymer,and residual acrylonitrile content.NOTE1The nomenclature used in these test methods is in accordancewith Practice D1418.1.2 The values stated in SI units a
5、re to be regarded asstandard.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
6、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 Organizat
7、ion TechnicalBarriers to Trade(TBT)Committee.2.Referenced Documents2.1 ASTM Standards:2D1076 Specification for RubberConcentrated,AmmoniaStabilized,Creamed,and Centrifuged Natural LatexD1331 Test Methods for Surface and Interfacial Tension ofSolutions of Paints,Solvents,Solutions of Surface-ActiveAg
8、ents,and Related MaterialsD1416 Test Methods for Rubber from Synthetic SourcesChemical Analysis(Withdrawn 1996)3D1418 PracticeforRubberandRubberLaticesNomenclatureD1646 TestMethodsforRubberViscosity,StressRelaxation,andPre-VulcanizationCharacteristics(Mooney Viscometer)D3182 Practice for RubberMater
9、ials,Equipment,and Pro-cedures for Mixing Standard Compounds and PreparingStandard Vulcanized SheetsD3314 Test Method for RubberChemical Analysis forPolystyrene Blocks In SBR(Styrene-Butadiene Rubber)and Styrene-Reinforced LaticesD4483 Practice for Evaluating Precision for Test MethodStandards in th
10、e Rubber and Carbon Black ManufacturingIndustriesD6204 Test Method for RubberMeasurement of Unvulca-nized Rheological Properties Using Rotorless Shear Rhe-ometersE70 Test Method for pH of Aqueous Solutions With theGlass ElectrodeE200 Practice for Preparation,Standardization,and Storageof Standard an
11、d Reagent Solutions for Chemical AnalysisE1970 Practice for Statistical Treatment of ThermoanalyticalDataE2975 Test Method for Calibration or Calibration Verifica-tion of Concentric Cylinder Rotational Viscometers3.Sampling3.1 Rubber latex tends to cream on standing.Once stratifi-cation has occurred
12、,the latex must be thoroughly agitated toobtain a homogeneous blend as a representative sub-sample.The procedure required differs with the type of container andfacilities available.3.2 Sub-Sampling from Tank Cars:3.2.1 If stratification has occurred,take separate samplesabout 75 mm(3 in.)from the to
13、p surface and about 75 mmfrom the bottom of the tank.If results from the top and bottom1These test methods are under the jurisdiction of ASTM Committee D11 onRubber and Rubber-like Materials and are the direct responsibility of SubcommitteeD11.23 on Synthetic Rubbers.Current edition approved Nov.1,2
14、021.Published November 2021.Originallyapproved in 1956.Last previous edition approved in 2016 as D1417 16.DOI:10.1520/D1417-16R21.2For referenced ASTM standards,visit the ASTM website,www.astm.org,orcontact ASTM Customer Service at serviceastm.org.For Annual Book of ASTMStandards volume information,
15、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 StatesThis international standard was developed in
16、 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.1samples do not agree within 1%total solids,the contents of thecar shall be thoroughly agitated until samples obtained doagree within this tolerance.3.3 Sub-Sampling from Drums:3.3.1 BlendingThe latex shall be blended by one of th
