1、Designation:D586907a(Reapproved 2013)Standard Practice forDark Oven Heat Exposure of Roofing and WaterproofingMaterials1This standard is issued under the fixed designation D5869;the number immediately following the designation indicates the year oforiginal adoption or,in the case of revision,the yea
2、r 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 establishes a procedure and conditions oftemperature and time for heat exposure of roofing and water-pro
3、ofing materials and systems in the presence of air.1.2 The values stated in SI units are to be regarded as thestandard.The values given in parentheses are for informationonly.1.3 This standard does not purport to address all of thesafety concerns,if any,associated with its use.It is theresponsibilit
4、y 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:2D883 Terminology Relating to PlasticsD1079 Terminology Relating to Roofing and WaterproofingD1566 Ter
5、minology Relating to RubberE145 Specification for Gravity-Convection and Forced-Ventilation OvensE230 Specification and Temperature-Electromotive Force(EMF)Tables for Standardized ThermocouplesE1137/E1137M Specification for Industrial Platinum Resis-tance ThermometersE2251 Specification for Liquid-i
6、n-Glass ASTM Thermom-eters with Low-Hazard Precision Liquids3.Terminology3.1 DefinitionsFor definitions of terms used in thispractice,refer to Terminologies D883,D1079,and D1566.4.Summary of Practice4.1 Specimens of roofing and waterproofing materials areexposed to heat in a dark forced-ventilation
7、oven at a specifiedelevated temperature for a known period of time.4.2 This practice specifies an exposure temperature of 70 63C(158 6 5F)in a forced-ventilation oven.4.3 This practice permits the selection of the duration ofheat exposure from three specified time periods,which are 35,90,and 180 6 0
8、.25 consecutive days.The duration selectedmust be included in any report of results obtained by using thispractice.NOTE1The time period to be used should be specified in any standardthat refers to this practice.European standards for polymer-modifiedbituminous materials specify 180 days at 70C.For r
9、esearch purposes,selection of other time periods and temperatures are permitted,providedthat the precise duration is stated in any report of results.4.4 This practice is also used to condition test specimens fortime periods much shorter than 35 days for the purpose ofconditioning material before tes
10、ting.When used for thispurpose,the shorter conditioning time shall be specified in anyreport of test results.5.Significance and Use5.1 Roofing and waterproofing materials and systems un-dergo changes in physical properties as a result of beingsubjected to heat.They also undergo changes in physicalpr
11、operties as they age in service.Since service conditions varywidely,any relationship between changes observed in thispractice and changes in service must be established by the userof this practice.6.Apparatus6.1 OvenThe oven shall have forced ventilation,shall beelectrically heated,and shall conform
12、 to the requirements ofSpecification E145,Type IIB.The oven shall be of sufficientsize to accommodate the size and number of specimensselected by the user of this practice.6.2 ThermometerThe thermometer shall be an ASTMthermometer,conforming to the requirements for thermometerS12C(or S12F)in accorda
13、nce with Specification E2251.As analternate,any other thermometric device used shall be at least:(1)of equal accuracy to that of the thermometer specified in1This practice is under the jurisdiction ofASTM Committee D08 on Roofing andWaterproofing and is the direct responsibility of Subcommittee D08.
14、02 on SteepRoofing Products and Assemblies.Current edition approved May 1,2013.Published May 2013.Originallyapproved in 1995.Last previous edition approved in 2007 as D5869 07a.DOI:10.1520/D5869-07AR13.2For referenced ASTM standards,visit the ASTM website,www.astm.org,orcontact ASTM Customer Service
15、 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 States1 Specification E2251,(2)capable of indicating temperatu
16、re towithin 1C(2F),and(3)stable to within 1C(2F)for theduration of the exposure.6.2.1 When used,platinum resistance thermometers shall bein accordance with the requirements of Specification E1137/E1137M.6.2.2 When used,thermocouples shall be in accordancewith the requirements of Specification E230.7.Specimens7.1 The number,geometry,and size of specimens shall bedetermined by the user of this practice.8.Heat Exposure8.1 Expose the specimens in a forced-ventilation oven at 706 3C(158 6 5F).8.2 The
