1、Designation:D4479/D4479M07(Reapproved 2012)1Standard Specification forAsphalt Roof CoatingsAsbestos-Free1This standard is issued under the fixed designation D4479/D4479M;the number immediately following the designation indicates theyear of original adoption or,in the case of revision,the year of las
2、t revision.A number in parentheses indicates the year of lastreapproval.A superscript epsilon()indicates an editorial change since the last revision or reapproval.This standard has been approved for use by agencies of the Department of Defense.1NOTEUnits information was editorially corrected in June
3、 2012.1.Scope1.1 This specification covers asbestos-free asphalt roof coat-ings of brushing or spraying consistency.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
4、shall be used independently of the other.Combiningvalues from the two systems may result in non-conformancewith the standard.1.3 The following precautionary caveat pertains only to thetest method portion,Section 8,of this specification:Thisstandard does not purport to address all of the safety conce
5、rns,if any,associated with its use.It is the responsibility of the userof this standard to establish appropriate safety and healthpractices and determine the applicability of regulatory limita-tions prior to use.2.Referenced Documents2.1 ASTM Standards:2D312 Specification for Asphalt Used in Roofing
6、D449 Specification for Asphalt Used in Dampproofing andWaterproofingD946 Specification for Penetration-Graded Asphalt Cementfor Use in Pavement ConstructionD6511 Test Methods for Solvent Bearing Bituminous Com-pounds3.Classification3.1 Type I is made from asphalts characterized as self-healing,adhes
7、ive,and ductile,and conforming to the require-ments of Specification D312,Type I;Specification D449,Types I or II;or Specification D946.3.2 Type II is made from asphalts characterized by highsoftening point and relatively low ductility,and conforming tothe requirements of Specification D312 Types II
8、 or III;orSpecification D449,Type III.4.Materials and Manufacture4.1 Asphalt roof coatings shall consist of an asphalt base,volatile petroleum solvents,and mineral or other stabilizers,orboth,excluding asbestos fiber,mixed to a smooth,uniformconsistency suitable for application by squeegee,three-kno
9、tbrush,paint brush,roller,or by spraying.5.Composition5.1 Asphalt roof coatings complying with this specificationshall conform to the following composition limits:minmaxWater content,%.2.5Nonvolatile content,%50.Mineral and/or other stabilizers520Bitumen(asphalt),%40.6.Physical Requirements6.1 Unifo
10、rmityAfter a thoroughly stirred sample has stoodfor 72 h at room temperature 23 6 2C 73.4 6 3.6F in aclosed container,it shall show no separation of solvent orsettling that cannot be overcome by moderate stirring.6.2 ConsistencyThe roof coating shall be of a consistencythat will spread readily and p
11、ermit application by squeegee,brush,roller or spray at the rate of 1.25 m2/litre 50 ft2/gal onprepared roofing,saturated felt,and metal surfaces at ambienttemperatures above 10C 50F.Consistency at 25C 77Fshall be between 50 and 400 Stormer s/100 revolutions.6.3 Behavior at 60C 140FThe roof coating s
12、hall showno evidence of blistering,and sag or slide shall be no greaterthan 6 mm 14in.Staining or absorption of the coating on thereverse side of the prepared roofing test panel shall not exceed5%of the coated area.6.4 Pliability at 0C 32FThere shall be no cracking orseparation of the roof coating f
13、rom the metal.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 1,2012.Published June 2012.Originall
14、yapproved in 1985.Last previous edition approved in 2007 as D4479 07.DOI:10.1520/D4479_D4479M-07R12E01.2For 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 Docu
15、ment Summary page onthe ASTM website.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 7.Sampling7.1 See Section 4 on Sampling of Test Methods D6511.8.Test Methods8.1 Determine composition and physical requirements byusing the procedures in
16、 Test Methods D6511.9.Precision and Bias9.1 See Section 21 on Precision and Bias of Test MethodsD6511.10.Inspection10.1 Inspection of the material shall be agreed upon by thepurchaser and the seller as part of the purchase contract.11.Rejection and Rehearing11.1 Failure to conform to any of the requirements pre-scribed in this specification shall constitute grounds for rejec-tion.In cases of rejection,the seller shall have the right toreinspect and resubmit the lot after removal of those package