1、Designation:D43/D43M00(Reapproved 2018)American Association StateHighway and Transportation Officials StandardAASHTO No.:M121Standard Specification forCoal Tar Primer Used in Roofing,Dampproofing,andWaterproofing1This standard is issued under the fixed designation D43/D43M;the number immediately fol
2、lowing the designation indicates the yearof original adoption or,in the case of revision,the year of last revision.A number in parentheses indicates the year of last reapproval.A superscript epsilon()indicates an editorial change since the last revision or reapproval.This standard has been approved
3、for use by agencies of the U.S.Department of Defense.1.Scope1.1 This specification covers coal tar primer suitable for usewith coal tar pitch in roofing,dampproofing,and waterproofingbelow or above ground level,for application to concrete,masonry,and coal tar surfaces.1.2 The values stated in either
4、 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
5、 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 sta
6、ndard 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.Refe
7、renced Documents2.1 ASTM Standards:2D140/D140M Practice for Sampling Asphalt MaterialsD168 Test Method for Coke Residue of Creosote(With-drawn 2006)3D246 Test Method for Distillation of Creosote and Creosote-Coal Tar Solutions(Withdrawn 2006)3D347 Tables for Volume and Specific Gravity Correction fo
8、rCreosote,Creosote-Coal Tar Solution,and Coal Tar(Withdrawn 2006)3D367 Test Method for Xylene-Insoluble Matter in Creosote(Withdrawn 2006)3D368 Test Method for Specific Gravity of Creosote andOil-Type Preservatives(Withdrawn 2006)3D370 Practice for Dehydration of Oil-Type Preservatives3.Physical Req
9、uirements3.1 Coal tar primer shall be a distillate of coal-gas tar orcoke-oven tar and shall conform to the following requirements:Waternot more than 1%Consistency at 5C 41Fentirely fluid and crystal freeASpecific gravity,38/15.5C 100/60F not less than 1.06Matter insoluble in benzenenot more than 0.
10、5%Distillation,based on water-free oil:Up to 210C 410Fnot more than 1%Up to 235C 455Fnot more than 10%Up to 355C 670Fnot less than 65%Coke residuenot more than 2%AThe coal tar primer shall be rated as crystal free if no crystals are formed when100 mL of the sample is maintained at a temperature of 5
11、C 41F for 3 h,in a 125mL Erlenmeyer flask,with occasional stirring.4.Sampling4.1 Sample the coal tar primer in accordance with PracticeD140/D140M.5.Test Methods5.1 Determine the properties enumerated in this specifica-tion in accordance with the following methods:5.1.1 WaterTest Method D370.5.1.2 Sp
12、ecific GravityTest Method D368.5.1.3 Matter Insoluble in XyleneTest Method D367.5.1.4 DistillationMethod D246.5.1.5 Coke ResidueTest Method D168.1This specification is under the jurisdiction of ASTM Committee D08 onRoofing and Waterproofingand is the direct responsibility of Subcommittee D08.05on So
13、lvent-Bearing Bituminous Compounds for Roofing and Waterproofing.Current edition approved May 1,2018.Published June 2018.Originallyapproved in 1917.Last previous edition approved in 2012 as D43/D43M 00(2012)1.DOI:10.1520/D0043_D0043M-00R18.2For referenced ASTM standards,visit the ASTM website,www.as
14、tm.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.3The last approved version of this historical standard is referenced onwww.astm.org.Copyright ASTM International,100 Barr Harb
15、or 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 i
16、ssued by the World Trade Organization Technical Barriers to Trade(TBT)Committee.1 5.1.6 Volume and Specific Gravity CorrectionVolume andSpecific Gravity Correction Tables D347.6.Inspection6.1 Inspection of the material shall be agreed upon betweenthe purchaser and the supplier.7.Rejection and Resubmittal7.1 Failure to conform to any of the physical requirementsprescribed in this specification shall constitute grounds forrejection.In the case of rejection,the supplier shall have theright to reins
