1、Designation:D366716Standard Specification forRubber Seals Used in Flat-Plate Solar Collectors1This standard is issued under the fixed designation D3667;the number immediately following the designation indicates the year oforiginal adoption or,in the case of revision,the year of last revision.A numbe
2、r 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 specification covers the general requirements formater
3、ials used in rubber seals of flat-plate solar collectors,except vertically mounted passive collectors.Particular appli-cations may necessitate other requirements that would takeprecedence over these requirements when specified.1.2 The design requirement pertains only to permissibledeflections of the
4、 rubber during thermal expansion or contrac-tion of the seal in use and the tolerances in dimensions ofmolded and extruded seals.1.3 This specification does not include requirements per-taining to the fabrication or installation of the seals.1.4 The values stated in SI units are to be regarded assta
5、ndard.No other units of measurement are included in thisstandard.1.5 The following safety hazards caveat pertains only toSection 9,Test Methods,of this specification:This standarddoes not purport to address all of the safety concerns,if any,associated with its use.It is the responsibility of the use
6、r of thisstandard to establish appropriate safety and health practicesand determine the applicability of regulatory limitations priorto use.2.Referenced Documents2.1 ASTM Standards:2C661 Test Method for Indentation Hardness of Elastomeric-Type Sealants by Means of a DurometerC717 Terminology of Buil
7、ding Seals and SealantsC719 Test Method for Adhesion and Cohesion of Elasto-meric Joint Sealants Under Cyclic Movement(HockmanCycle)D395 Test Methods for Rubber PropertyCompression SetD412 Test Methods for Vulcanized Rubber and Thermoplas-tic ElastomersTensionD865 Test Method for RubberDeterioration
8、 by Heating inAir(Test Tube Enclosure)D1149 Test Methods for Rubber DeteriorationCracking inan Ozone Controlled EnvironmentD1229 Test Method for Rubber PropertyCompression Setat Low TemperaturesD1349 Practice for RubberStandard Conditions for Test-ingD1415 Test Method for Rubber PropertyInternationa
9、lHardnessD1566 Terminology Relating to RubberD2137 Test Methods for Rubber PropertyBrittleness Pointof Flexible Polymers and Coated FabricsD2240 Test Method for Rubber PropertyDurometer Hard-nessD3182 Practice for RubberMaterials,Equipment,and Pro-cedures for Mixing Standard Compounds and PreparingS
10、tandard Vulcanized SheetsD3183 Practice for RubberPreparation of Pieces for TestPurposes from ProductsG7 Practice for Atmospheric Environmental Exposure Test-ing of Nonmetallic MaterialsG151 Practice for Exposing Nonmetallic Materials inAccel-erated Test Devices that Use Laboratory Light SourcesG155
11、 Practice for Operating Xenon Arc Light Apparatus forExposure of Non-Metallic Materials2.2 Other Standards:3RMA Handbook Rubber Products:Molded,Extruded,Lathe Cut,and Cellular3.Terminology3.1 DefinitionsRefer to the definitions of terms in Termi-nology C717 and Terminology D1566.4.Classification4.1
12、Types:1This specification is under the jurisdiction ofASTM Committee D11 on Rubberand is the direct responsibility of Subcommittee D11.37 on Coated Fabrics,RubberThreads and Seals.Current edition approved July 1,2016.Published July 2016.Originally approvedin 1978.Last previous edition approved in 20
13、10 as D3667 05(2010).DOI:10.1520/D3667-16.2For 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.3Available from Rubber M
14、anufacturers Association(RMA),1400 K St.,NW,Suite 900,Washington,DC 20005,http:/www.rma.org.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 4.1.1 Type C,intended for use in cold climates(below-10C in winter).4.1.2 Type W,intended for use
15、in warm climates(above-10C in winter).4.2 Grades:4.2.1 Grade designations represent differing degrees ofhardness as follows:4.2.1.1 Grade 2,hardness of 20 6 5.4.2.1.2 Grade 3,hardness of 30 6 5.4.2.1.3 Grade 4,hardness of 40 6 5.4.2.1.4 Grade 5,hardness of 50 6 5.4.2.1.5 Grade 6,hardness of 60 6 5.4
16、.2.1.6 Grade 7,hardness of 70 6 5.4.2.1.7 Grade 8,hardness of 80 6 5.NOTE1The grade to be used in a particular application depends on thedesign of the seal and must be specified by the designer.4.3 Classes:4.3.1 Seals shall be classified as follows:4.3.1.1 Class PS,preformed rubber seal.4.3.1.2 Class SC,sealing compound.NOTE2Class SC material should not be used in designs where theseal is under mechanical stress.5.Materials and Manufacture5.1 Seals shall be rubber vulcanizates conforming to ther
