1、Designation:D243/D243M20Standard Test Method forResidue of Specified Penetration1This standard is issued under the fixed designation D243/D243M;the number immediately following the designation indicates the yearof original adoption or,in the case of revision,the year of last revision.A number in par
2、entheses indicates the year of last reapproval.A superscript epsilon()indicates an editorial change since the last revision or reapproval.1.Scope1.1 This test method is used to thermally reduce cutbackasphalt,a road oil or a semisolid asphalt,having a penetrationgreater than 100,to a residue of spec
3、ified penetration.It isprimarily used with slow-curing cutback asphalt as specified inSpecification D2026/D2026M.1.2 The values stated in either SI units or inch-pound unitsare to be regarded separately as standard.The values stated ineach system are not necessarily exact equivalents;therefore,toens
4、ure conformance with the standard,each system shall beused independently of the other,and values from the twosystems shall not be combined.1.3 WarningMercury has been designated by the UnitedStates Environmental ProtectionAgency(EPA)and many stateagencies as a hazardous material that can cause centr
5、al nervoussystem,kidney,and liver damage.Mercury,or its vapor,maybe hazardous to health and corrosive to materials.Cautionshould be taken when handling mercury and mercury-containing products.See the applicable product MaterialSafety Data Sheet(MSDS)for details and EPAs websitehttp:/www.epa.gov/merc
6、ury/for additional information.Us-ers should be aware that selling mercury,mercury-containingproducts,or both,into your state may be prohibited by statelaw.1.4 The text of this standard references notes and footnoteswhich provide explanatory material.These notes and footnotes(excluding those in tabl
7、es and figures)shall not be consideredas requirements of the standard.1.5 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 de
8、ter-mine the applicability of regulatory limitations prior to use.1.6 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-menda
9、tions issued by the World Trade Organization TechnicalBarriers to Trade(TBT)Committee.2.Referenced Documents2.1 ASTM Standards:2D5/D5M Test Method for Penetration of Bituminous Mate-rialsD8 Terminology Relating to Materials for Roads and Pave-mentsD2026/D2026M Specification for Cutback Asphalt(Slow-
10、Curing Type)D3666 Specification for Minimum Requirements for Agen-cies Testing and Inspecting Road and Paving MaterialsD8055 Guide for Selecting an Appropriate Electronic Ther-mometer for Replacing Mercury Thermometers in D04Road and Paving StandardsE1 Specification for ASTM Liquid-in-Glass Thermome
11、tersE77 Test Method for Inspection and Verification of Ther-mometersE563 Practice for Preparation and Use of an Ice-Point Bathas a Reference TemperatureE644 Test Methods for Testing Industrial Resistance Ther-mometers3.Terminology3.1 Definitions of terms used in this practice may be foundin Terminol
12、ogy D8,determined from common English usage,or combinations of both.4.Summary of Test Method4.1 The material to be tested is rapidly heated to 249 C480 F and maintained at 249 to 260 C 480 to 500 Fduring evaporation of the volatiles.Penetration of the residue isdetermined and if not within the speci
13、fied limits,the evapora-tion procedure is repeated.Change in sample mass is used tocalculate the percentage of residue having the specified pen-etration.1This test method is under the jurisdiction of ASTM Committee D04 on Roadand Paving Materials and is the direct responsibility of Subcommittee D04.
14、46 onDurability and Distillation Tests.Current edition approved Nov.1,2020.Published November 2020.Originallyapproved in 1926.Last previous edition approved in 2014 as D243/D243M 14.DOI:10.1520/D0243_D0243M-20.2For referenced ASTM standards,visit the ASTM website,www.astm.org,orcontact ASTM Customer
15、 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 acc
16、ordance 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.5.Significance and Use5.1 This test method is used to determine the percentage ofresidue having a specified penetration at 100 g/5 s at 25 C77 F.This test method provides a residue for quality controlor for use in other tests as desir
