1、Designation:D6411/D6411M99(Reapproved 2020)Standard Specification forSilicone Rubber Room Temperature Vulcanizing LowOutgassing Materials1This standard is issued under the fixed designation D6411/D6411M;the number immediately following the designation indicates theyear of original adoption or,in the
2、 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 The specification covers a two-part flowable space graderoom temperature vulcanizing(RTV)sili
3、cone rubber adhesiveor compound.The material is specifically designed for appli-cations requiring extreme low temperature,low outgassing andminimal volatile condensibles under extreme operating condi-tions.The RTV silicone rubber should be suitable for with-standing environmental exposure to tempera
4、tures from 115 to200C(175 to 392F).The material should also withstand thecombination of stress,temperature,and relative humidityexpected to be encountered in service.The RTV silicone rubbermay be used as a sealing,caulking,potting or bonding materialfor applications on metal,plastics,rubber,glass,an
5、d ceramicproducts.Types I and II are often used as coatings.1.2 The values stated in SI units or inch-pound units are tobe regarded separately as standard.Within the text,theinch-pound units are shown in brackets.The values stated ineach system are not exact equivalents;therefore,each systemmust be
6、used independently of the other.Combining valuesfrom the two systems may result in nonconformance with thisspecification.1.3 The following precautionary statement refers to the testmethod portion only,Section 8,of this specification:Thisstandard does not purport to address all of the safety concerns
7、,if any,associated with its use.It is the responsibility of the userof this standard to establish appropriate safety,health,andenvironmental practices and determine the applicability ofregulatory limitations prior to use.1.4 This international standard was developed in accor-dance with international
8、ly 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 Specificatio
9、n for Aluminum and Aluminum-AlloySheet and PlateD149 Test Method for Dielectric Breakdown Voltage andDielectric Strength of Solid Electrical Insulating Materialsat Commercial Power FrequenciesD150 Test Methods for AC Loss Characteristics and Permit-tivity(Dielectric Constant)of Solid Electrical Insu
10、lationD257 Test Methods for DC Resistance or Conductance ofInsulating MaterialsD412 Test Methods for Vulcanized Rubber and Thermoplas-tic ElastomersTensionD792 Test Methods for Density and Specific Gravity(Rela-tive Density)of Plastics by DisplacementD907 Terminology of AdhesivesD1002 Test Method fo
11、r Apparent Shear Strength of Single-Lap-Joint Adhesively Bonded Metal Specimens by Ten-sion Loading(Metal-to-Metal)D1084 Test Methods for Viscosity of AdhesivesD2240 Test Method for Rubber PropertyDurometer Hard-nessD2651 Guide for Preparation of Metal Surfaces forAdhesiveBondingD3951 Practice for C
12、ommercial PackagingE595 Test Method for Total Mass Loss and Collected Vola-tile Condensable Materials from Outgassing in a VacuumEnvironment2.2 National Aeronautics and Space Administration(NASA):JSC SP-R-0022 General Specification,Vacuum StabilityRequirement of Polymeric Material for Spacecraft App
13、li-cation3MSFC-HDBK-527/JSC-09604 Material Selection List forHardware Systems31This specification is under the jurisdiction of ASTM Committee D14 onAdhesives and is the direct responsibility of subcommittee D14.80 on MetalBonding Adhesives.Current edition approved Jan.1,2020.Published January 2020.O
14、riginallyapproved in 1999.Last previous edition approved in 2012 as D6411/D6411M 99(2012).DOI:10.1520/D6411_D6411M-99R20.2For 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
15、the standards Document Summary page onthe ASTM website.3Unless otherwise indicated,copies of the above documents are available froma NASA installation library or document repository.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United StatesThis inter
16、national 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.GSFC RP 1124 Outgassing Data for Selecting SpacecraftMaterials3NOTE1Copies of specifications,standards,drawings and publicationsrequired by suppliers in connection with specific purchases should b