ASTM_D_5643_-_D_5643M_-_06_2018.pdf

Designation:D5643/D5643M06(Reapproved 2018)Standard Specification forCoal Tar Roof Cement,Asbestos Free1This standard is issued under the fixed designation D5643/D5643M;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 specification covers coal tar roof cement suitablefor trowel application in coal tar roofing and flashing systems.1.2 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.1.3 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 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 Organization TechnicalBarriers to Trade(TBT)Committee.2.Referenced Documents2.1 ASTM Standards:2D4 Test Method for Bitumen ContentD95 Test Method for Water in Petroleum Products andBituminous Materials by DistillationD140/D140M Practice for Sampling Asphalt MaterialsD3143/D3143M Test Method for Flash Point of CutbackAsphalt with Tag Open-Cup ApparatusD3409/D3409M Test Method for Adhesion of Asphalt-RoofCement to Damp,Wet,or Underwater SurfacesD6511/D6511M Test Methods for Solvent Bearing Bitumi-nous Compounds3.Materials and Manufacture3.1 Coal tar roof cement shall consist of a processed coal tarbase,volatile solvents,and mineral stabilizers,excludingasbestos,mixed to a smooth uniform consistency suitable fortrowel application.4.Chemical Composition4.1 The composition of coal tar roof cement shall conformto the requirements prescribed in Table 1.5.Performance Requirements5.1 UniformityA thoroughly stirred sample shall show noseparation of solvent or settling that cannot be overcome bymoderate stirring after standing for 72 h at room temperature ina closed container.5.2 WorkabilityThe cement shall be of such a consistencythat it will spread readily and permit troweling smooth coatings1.6 to 3.2 mm 116to18in.thick on vertical surfaces.5.3 Behavior at 60C 140FThe cement shall show noevidence of blistering,and sag or slide shall be no greater than6 mm 14in.5.4 Adhesion to Wet SurfacesMinimum average 75%.5.5 Flash Point38C 100F minimum.6.Sampling6.1 Sample the material from the original container imme-diately after stirring to a uniform consistency,in accordancewith Practice D140/D140M.6.2 Restir the samples to obtain uniformity immediatelybefore withdrawing portions for individual tests.7.Test Methods7.1 WaterSee Test Method D95.7.2 Nonvolatile MatterDetermine nonvolatile matter inaccordance with Test Methods D6511/D6511M,Section 7(Nonvolatile Content).7.3 Insoluble MatterSee Test Method D4,Procedure No.2.7.4 Behavior at 60C 140FSee Test Methods D6511/D6511M,Section 12(Behavior at 60C 140F).1This specification is under the jurisdiction of ASTM Committee D08 onRoofing and Waterproofing and is the direct responsibility of Subcommittee D08.05on Solvent-Bearing Bituminous Compounds for Roofing and Waterproofing.Current edition approved May 1,2018.Published June 2018.Originallyapproved in 1994.Last previous edition approved in 2012 as D5643/D5643M 06(2012)1.DOI:10.1520/D5643_D5643M-06R18.2For 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 7.5 Adhesion to Wet SurfacesSee Test Method D3409/D3409M.7.6 Flash PointSee Test Method D3143/D3143M.8.Inspection8.1 Inspection of the material shall be agreed upon betweenthe purchaser and the supplier.9.Rejection and Resubmittal9.1 Failure to conform to any of the requirements prescribedin this specification may constitute grounds for rejection.In thecase of rejection,the supplier shall have the right to reinspectthe rejected material and resubmit the