1、Designation: D 6436 08Standard Guide forReporting Properties for Plastics and ThermoplasticElastomers1This standard is issued under the fixed designation D 6436; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year of last revi
2、sion. A number in parentheses indicates the year of last reapproval. Asuperscript epsilon () indicates an editorial change since the last revision or reapproval.1. Scope*1.1 This guide provides recommendations for reporting theresults of property values for plastics and thermoplastic elas-tomers in
3、published literature, data sheets, presentations, com-parative analysis, and so forth. It is intended to minimizeconfusion when 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
4、 use other guidance to determine the number ofsignificant figures for reporting laboratory test results.NOTE 1There is no similar or equivalent ISO standard.2. Referenced Documents2.1 Due to the large number of ASTM test methods refer-enced in this guide, they will not be identified individually int
5、his section.2.2 ASTM Standards2D 883 Terminology Relating to PlasticsD 1600 Terminology for Abbreviated Terms Relating toPlasticsIEEE/ ASTM SI-10 Standard for Use of the InternationalSystem of Units (SI): The Modern Metric System2.3 NFPA Standard:NFPA 99 Standard for Health Care Facilities33. Termin
6、ology3.1 DefinitionsThe terminology used in this guide is inaccordance with Terminologies D 883, D 1600, 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 appr
7、opriate 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 un
8、its are to be regarded as the standard. U.S.Customary units and conversion factors are provided to accom-modate those situations where it is necessary to report both.U.S. Customary refers to units commonly used in the UnitedStates and is not always the same as inch-pound units.5. Procedure5.1 Refer
9、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 el
10、ectrical tests, can be found in IEEE/ASTMSI10.6. 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 D20.94 on Government/Indus
11、tryStandardization.Current edition approved Aug. 1, 2008. Published September 2008. Originallyapproved in 1999. Last previous edition approved in 2002 as D 6436 - 02.2For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service at serviceastm.org. For Annual B
12、ook 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
13、-ence of experts in the plastics industry.1*A Summary of Changes section appears at the end of this standard.Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.TABLE 1 Reference Guide for Properties ReportedProperty Reported Units, SI (U
14、.S. Customary) ASTM Test MethodMaximum Number ofSignificant DigitsConversion Factor (CV)(SI 3 CV=U.S.Customary)Arc Resistance s (s) D 495 2 1Bulk Density kg/m3(lb/ft3) D 1895 3 0.06242Coefficient of Friction D 1894 2 Coefficient of Linear Thermal Expansion mm/mm 3 C (in./in. 3 F) D 696 2(expressed i
15、n scientificnotation)0.5556Color, CIE, L*, a*, b* E 308 3 Crystalline Peak Melting Point (Tm)2nd Heating CycleC (F) D 3418 3 (C 3 1.8) + 32Dart Impact g (g) D 1709 2(1 if value is 0.25 mm (10 mils)Transmittance (Specify Regular Transmittanceand/or Total Transmittance)% (%) D 1003 2 1Transparency (Cl
16、arity) % (%) D 1746 2 1Vicat Softening Temperature C (F) D 1525 3 (C 3 1.8) + 32Volume Resistivity ohms 3 cm (ohms 3 cm) D 257 2 1(expressed in scientificnotation)Water Absorption % (%) D 570 2 1Water Vapor Transmission Rate g/m23 24 h(g/100 in.23 24 h)F 372 (film/sheet) 2 0.06452Yellowness Index E
17、313 2 SUMMARY OF CHANGESCommittee D20 has identified the location of selected changes to this standard since the last issue(D 6436 - 02) that may impact the use of this standard. (August 1, 2008)(1) Limited conversion factors to four significant digits at mostin Table 1.ASTM International takes no p
18、osition respecting the validity of any patent rights asserted in connection with any item mentionedin this standard. Users of this standard are expressly advised that determination of the validity of any such patent rights, and the riskof infringement of such rights, are entirely their own responsib
19、ility.This standard is subject to revision at any time by the responsible technical committee and must be reviewed every five years andif not revised, either reapproved or withdrawn. Your comments are invited either for revision of this standard or for additional standardsand should be addressed to
20、ASTM International Headquarters. Your comments will receive careful consideration at a meeting of theresponsible technical committee, which you may attend. If you feel that your comments have not received a fair hearing you shouldmake your views known to the ASTM Committee on Standards, at the addre
21、ss shown below.This standard is copyrighted by ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959,United States. Individual reprints (single or multiple copies) of this standard may be obtained by contacting ASTM at the aboveaddress or at 610-832-9585 (phone), 610-832-9555 (fax), or serviceastm.org (e-mail); or through the ASTM website(www.astm.org).D6436084
