ASTM_C_1589_-_C_1589M_-_17b.pdf

Designation:C1589/C1589M17bStandard Practice forOutdoor Weathering of Construction Seals and Sealants1This standard is issued under the fixed designation C1589/C1589M;the number immediately following the designation indicates theyear of original adoption or,in the case of revision,the year of last revision.A number in parentheses indicates the year of lastreapproval.A superscript epsilon()indicates an editorial change since the last revision or reapproval.1.Scope1.1 This practice describes outdoor exposure procedures tobe used as part of a test designed to determine the weather-ability of building construction,seals and sealants.NOTE1See Practice G24 for Exposures to Daylight Filtered ThroughGlass.1.2 This practice includes three procedures for outdoorweathering.Procedure A exposes specimens to outdoor weath-ering without movement.Procedure B and Procedure C are,respectively,continuous natural and periodic manual tech-niques for subjecting specimens to the combination of cyclicmovement and exposure to outdoor weathering.1.3 This practice is limited to the method by which theconstruction seals or sealants are exposed to outdoor weather-ing as part of a test program.It refers to the types ofevaluations to be performed following the outdoor exposurebut does not describe the test methods.1.4 Means of evaluation of the effects of weathering willdepend on the intended use of the test material.1.5 The values stated in either SI units or inch-pound unitsare to be regarded separately as standard.The values stated ineach system may not be exact equivalents;therefore,eachsystem shall be used independently of the other.Combiningvalues from the two systems may result in non-conformancewith the standard.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 and health practices and determine the applica-bility 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:2C717 Terminology of Building Seals and SealantsC719 Test Method for Adhesion and Cohesion of Elasto-meric Joint Sealants Under Cyclic Movement(HockmanCycle)C1135 Test Method for Determining Tensile Adhesion Prop-erties of Structural SealantsC1735 Test Method for Measuring the Time DependentModulus of Sealants Using Stress RelaxationE631 Terminology of Building ConstructionsE772 Terminology of Solar Energy ConversionG7 Practice for Atmospheric Environmental Exposure Test-ing of Nonmetallic MaterialsG24 Practice for Conducting Exposures to Daylight FilteredThrough GlassG84 Practice for Measurement of Time-of-Wetness on Sur-faces Exposed to Wetting Conditions as in AtmosphericCorrosion TestingG113 Terminology Relating to Natural and Artificial Weath-ering Tests of Nonmetallic MaterialsG147 Practice for Conditioning and Handling of Nonmetal-lic Materials for Natural and Artificial Weathering TestsG169 Guide for Application of Basic Statistical Methods toWeathering TestsG178 Practice for Determining the Activation Spectrum of aMaterial(Wavelength Sensitivity to an Exposure Source)Using the Sharp Cut-On Filter or Spectrographic Tech-nique3.Terminology3.1 DefinitionsDefinitions are found in TerminologiesC717,G113,E631,and E772.4.Significance and Use4.1 Tests conducted in accordance with this practice areused to evaluate the weatherability of construction seals andsealant materials when they are exposed to outdoor weatherconditions.The weatherability of seals and sealants in actual1This practice is under the jurisdiction of ASTM Committee C24 on BuildingSeals and Sealants and is the direct responsibility of Subcommittee C24.40 onWeathering.Current edition approved May 1,2017.Published May 2017.Originallyapproved in 2004.Last previous edition approved in 2017 as C1589/C1589M-17a.DOI:10.1520/C1589/C1589M-17B.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 outdoor use can be very different depending on the locationbecauseofdifferencesinsolarradiation,moisture,temperature,pollutants,and other factors.Sea