ASTM_D_6436_-_14_2022.pdf

Designation:D643614(Reapproved 2022)Standard Guide forReporting Properties for Plastics and ThermoplasticElastomers1This standard is issued under the fixed designation D6436;the number immediately following the designation indicates the year oforiginal adoption or,in the case of revision,the year 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 guide provides recommendations for reporting theproperty values of plastics and thermoplastic elastomers inpublished literature,data sheets,presentations,comparativeanalysis,and so forth.It is intended to minimize confusionwhen comparing the data from several sources.1.2 This standard is not intended to replace recommenda-tions within the test methods for reporting data.Refer to thetest method or use other guidance to determine the number ofsignificant figures for reporting laboratory test results.NOTE1There is no known ISO equivalent to this standard.1.3 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 Because of the large number of ASTM test methodsreferenced in this guide,they will not be identified individuallyin this section.2.2 ASTM Standards:2D883 Terminology Relating to PlasticsD1600 Terminology forAbbreviated Terms Relating to Plas-ticsIEEE/ASTM SI-10 Standard for Use of the InternationalSystem of Units(SI):The Modern Metric System2.3NFPA Standard:NFPA 99 Standard for Health Care Facilities33.Terminology3.1 DefinitionsThe terminology used in this guide is inaccordance with Terminologies D883,D1600,and IEEE/ASTM SI-10.4.Significance and Use4.1 This guide is intended to provide ready access to therecommended property name,test method reference,maximumnumber of significant digits,4and appropriate units for com-monly used plastics and thermoplastic elastomer tests.4.2 It is particularly useful for those involved in the writingand proofreading of documents containing data for a largenumber of tests since the need to go to each individual testmethod should be greatly minimized.4.3 SI units are to be regarded as standard.U.S.Customaryunits and conversion factors are provided to accommodatethose situations where it is necessary to report both.U.S.Customary refers to units commonly used in the United Statesand is not always the same as inch-pound units.5.Procedure5.1 Refer to Table 1 for the recommended nomenclature andunits for physical properties and the recommended number ofsignificant digits for test data associated with each property.5.2 Abbreviations not shown in Table 1 that may benecessary to further clarify the conditions of testing,such asMHz and kHz for electrical tests,can be found in IEEE/ASTMSI-10.6.Keywords6.1 conversion factors;decimal places;properties reporting;reporting guide;significant figures1This guide is under the jurisdiction of ASTM Committee D20 on Plastics andis the direct responsibility of Subcommittee D20.15 on Thermoplastic Materials.Current edition approved March 15,2022.Published March 2022.Originallyapproved in 1999.Last previous edition approved in 2014 as D6436-14.DOI:10.1520/D6436-14R22.2For 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.3Available from National Fire Protection Association(NFPA),1 BatterymarchPark,Quincy,MA 02169-7471,http:/www.nfpa.org.4The recommended maximum number of significant digits is based on experi-ence of experts in the plastics industry.*A Summary of Changes section appears at the end of this standardCopyright 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.1TABLE 1 Reference Guide for Properties ReportedProperty ReportedUnits,SI(U.S.Customary)ASTM Test MethodMaximum Number ofSignificant DigitsConversion Factor(CV)(SI CV=U.S.Customary)Arc Resistances(s)D49521Bulk Densitykg/m3(lb/ft3)D189530.06242Charpy Impact Resistance of Notched SpecimensJ/m(ft lbf in.)D611030.01873Coefficient of FrictionD18942Coefficient of Linear Thermal Expansionmm/mm C(in./in.F)D6962(expressed in scientific nota-tion)0.5556Color,CIE,L*,a*,b*E3083Crystalline Peak Melting Point(Tm)2nd Heating CycleC(F)D34183(C 1.8)+32Dart Impactg(g)D17092(1 if value is 0.25 mm(10 mils)Transmi