1、Designation: D 6712 01 (Reapproved 2009)Standard Specification forUltra-High-Molecular-Weight Polyethylene (UHMW-PE) SolidPlastic Shapes1This standard is issued under the fixed designation D 6712; the number immediately following the designation indicates the year oforiginal adoption or, in the case
2、 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.INTRODUCTIONThis specification is intended to be a means of defining Ultra-High-Molecular-Weight2Polyeth
3、ylene(UHMW-PE) solid plastic shapes for commercial use.1. Scope1.1 This specification covers requirements and test methodsfor the material and properties of solid plastic shapes manu-factured from UHMW-PE.1.2 The properties included in this specification are thoserequired for the compositions covere
4、d and are derived frommolded samples or fabricated from sheet, rod and profiles.Requirements necessary to identify particular characteristicsimportant to specialized applications may be described byusing the classification system given in Section 4.1.3 This specification allows for the use of recycl
5、ed plastics(as defined in Guide D 5033).1.4 The values are stated in SI units and are regarded as thestandard in all property tables. For reference purposes, Englishunits are also included in Table S-UHMW-PE and Table A.1.5 The following precautionary caveat pertains only to thetest method portions
6、of this specification. This standard doesnot purport to address all of the safety concerns, if any,associated with its use. It is the responsibility of the user of thisstandard to establish appropriate safety and health practicesand determine the applicability of regulatory requirementsprior to use.
7、NOTE 1There is no ISO equivalent standard.2. Referenced Documents2.1 ASTM Standards:3D 618 Practice for Conditioning Plastics for TestingD 638 Test Method for Tensile Properties of PlasticsD 883 Terminology Relating to PlasticsD 1600 Terminology for Abbreviated Terms Relating toPlasticsD 3892 Practi
8、ce for Packaging/Packing of PlasticsD 4000 Classification System for Specifying Plastic Mate-rialsD 4020 Specification for Ultra-High-Molecular-WeightPolyethylene Molding and Extrusion MaterialsD 5033 Guide for Development of ASTM Standards Relat-ing to Recycling and Use of Recycled Plastics42.2 ISO
9、 Standard:ISO 11542-2 Ultra-High-Molecular Weight Polyethylene(PE-UHMW) Moulding MaterialsPart 2: Preparation ofTest Specimens and Determination of Properties3. Terminology3.1 Definitions:3.1.1 For definitions of other technical terms pertaining toplastics used in this specification, see Terminology
10、 D 883,D 1600, or Guide D 5033.3.2 Definitions of Terms Specific to This Standard:3.2.1 additive, nany material added to the polymer suchas processing aids, stabilizers, and colorants.3.2.2 recycled-plastic shape, na product made from up to100 % post-consumer material.3.2.3 regrind (plastic), na pro
11、duct or scrap such as edgetrim that have been reclaimed by shredding and granulating foruse in-house.3.2.4 rod, nan extruded solid cylindrical shape with aminimum diameter of116 in.3.2.5 sheet, nflat stock greater than 10 mils thickness.3.2.6 solid plastic shape, na product of various geom-etries ma
12、de up of UHMW-PE, such as sheet, rod, and so forth.1This specification is under the jurisdiction of ASTM Committee D20 onPlastics and is the direct responsibility of Subcommittee D20.20 on Plastic Products.Current edition approved Feb. 1, 2009. Published March 2009. Originallyapproved in 2001. Last
13、previous edition approved in 2001 as D 6719 - 01.2Ultra High Molecular Weight refers to a polyethylene resin meeting therequirements of Specification D 4020.3For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service at serviceastm.org. For Annual Book of AS
14、TMStandards volume information, refer to the standards Document Summary page onthe ASTM website.4Withdrawn. The last approved version of this historical standard is referencedon www.astm.org.1Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United S
15、tates.TABLE S-UHMW-PE Physical Property Requirements for Ultra High Molecular Weight Polyethylene Solid Plastic ShapesDescription Type Class Description GradeApplicableSpecificationCalloutDescriptionIzod impact, Test Methodfor D 4020,min,kJ/m2(ft-lbs/in.2)Elongational Stress,Test Method forISO 11542
16、-2 (Annex 1),min, MpaTensile Elongation,Test Method for D 638,% at break, minUHMW-PE 01 1 unfilled 1 ASTM D 4020 General purpose 37 (18) 0.20 2002 see Table A Recycled . . . . . . . . .00 as specified 1 see Table A General purpose . . . . . . . . .2 see Table A Recycled . . . . . . . . .0Other UHMW-
17、PE 00 0 . . . 0 . . . . . . . . . . . . . . .4. Classification and Material4.1 Product shape and size as defined in the applicablepurchase order.4.2 This standard covers product as listed in TableS-UHMW-PE.4.2.1 The type of UHMW-PE product may be categorizedby grade and type depending on resin and a
18、dditives present, asdefined in Table S-UHMW-PE.4.2.2 Every type of UHMW-PE solid plastic shape may becategorized into one of two grades as follows:4.2.2.1 Grade l: General Purpose (Virgin) UHMW-PEUHMW-PE solid plastic shapes are made using only 100 %virgin UHMW polyethylene resin which meets the req
19、uire-ments of Specification D 4020. If appropriate, the resin maycontain additives, such as processing aids, stabilizers andcolorants. Virgin product should not contain materials ofunknown origin or composition.4.2.2.2 Grade 2: Recycled/Regrind UHMW-PEUHMW-PE solid plastic shapes are made using any
20、amount upto 100 percent of recycled, or regrind UHMW-PE plastic, orboth.TABLE A Additional Requirements for UHMW-PE Solid PlasticShapesNOTEThe values listed in Table A are minimum values.DesignationOrderNumberProperty 0 1 91 Izod impact, Test Methodfor D 4020,minKJ/m2(ft-lbs/in.2)Unspecified 30 (14)
21、 Specifyvalue2 Elongational stress, TestMethod for ISO 11542-2(Annex 1), min, MPaUnspecified 0.20 Specifyvalue3 Elongation at break, TestMethod for D 638,%,minUnspecified 200 Specifyvalue4 To be determined . . . . . . . . .4.3 Property Tables:4.3.1 Table S-UHMW-PE may be used to describeUHMW-PE soli
22、d plastic shapes.4.3.2 To facilitate the incorporation of future UHMW-PE orspecial UHMW-PE formulations not covered by Table A, the“as specified” category (00) for grade is shown on the tablewith the basic properties to be obtained from Table S-UHMW-PE, as they apply.4.4 Callout DesignationA one-lin
23、e system shall be usedto specify polyethylene materials covered by this specification.4.4.1 The system uses pre-defined cells to refer to specificaspects of this specification as illustrated below in Examples13:4.4.2 Example 1Product made from virgin TypeUHMW-PE resin.CELL CALLOUT: S-UHMW-PE0111wher
24、e:S-UHMW-PE01 = product made from general purposeresin per Table S-UHMW-PE,1 = unfilled class, and1 = general purpose.4.4.3 Example 2Product made using virgin resin, orregrind/recycled UHMW-PE, or both, with an Izod impact 30kJ/m2(14 ft-lb/m2), minimum and elongation at break morethan 200 %.CELL CAL
25、LOUT: S-UHMW-PE0112A101where:S-UHMW-PE01 = product made from general purposeresin per Table S-UHMW-PE,1 = unfilled class,2 = product made using virgin resin, orreprocessed/recycled UHMW-PE, orboth, per Table S-UHMW-PE,A = Table A properties,1 = Izod impact, 30 kJ/m2(14 ft-lb/in.2),min,0 = unspecifie
26、d, and1 = elongation at break, 200 %, min.4.4.4 Example 3Product made using virgin UHMW-PEresin and having an Izod impact strength of 105 kJ/m2(50)ft-lb/in.2.CELL CALLOUT: S-UHMW-PE0101A911PX105where:FIG. 1 Callout Designation LayoutD 6712 01 (2009)2S-UHMW-PE01 = product made from virgin resin perTa
27、ble S-UHMW-PE,0 = as specified,1 = general purpose,A = Table A properties,9 = specify value,1 = elongational stress $0.2 (MPa),1 = elongation at break, 200 %,PX = D 4020 suffix P, and105 = 105 kJ/m2(50 ft-lb/in.2) (for 9 above).4.4.5 The three examples illustrate how a one-line, alpha-numeric sequen
28、ce can identify the product composition, com-mercial parameters and physical characteristics of UHMW-PEsheet and rod product.5. Physical Property Requirements5.1 The data listed within this specifications tables are to beconsidered minimum values. Any requirement for specific testdata for a given pr
29、oduction lot should be specified at the timeof order. All physical property data listed in TableS-UHMW-PE shall be provided by the supplier of the solidplastic shapes on demand. Physical property data for productsnot yet included in Table S-UHMW-PE may be specified usingTable A for UHMW-PE solid pla
30、stic shapes.6. Dimensional Requirements6.1 Products shall be supplied in the unfinished condition,unless otherwise specified at the time of order, sufficient tofinish to the nominal dimension ordered.7. Workmanship, Finish, and Appearance7.1 AppearanceThe color of products shall be as pub-lished by
31、the manufacturer, within commercial tolerances.They shall be uniform in color throughout the thickness.Specific colors and color matching only as agreed to by order.Physical properties may be affected by colors.7.2 FinishAll products shall have a finish consistent withcurrent manufacturing processes
32、.8. Sampling8.1 Sampling shall be statistically adequate to satisfy therequirements of this standard.9. Number of Tests9.1 The criteria listed in these product tables and definitionsare sufficient to establish conformity of the sheet to thisspecification. When the number of test specimens is not sta
33、tedin the test method, single determination may be made. If morethan single determinations and separate portions of the samesample are made, the results shall be averaged. The final resultshall conform to the requirements prescribed in this specifica-tion.10. Test Conditions10.1 Conditioning of Spec
34、imensThe specification valuesand dimensions are based on conditioning techniques outlinedin Practice D 618 Procedure A.10.2 Testing of SpecimensThe tests shall be conducted atthe standard laboratory conditions at (23C 6 2C).11. Test Methods11.1 Elongation at break per Test Method D 638, at the rateo
35、f 2.0 in./min 6 10 %.11.2 Izod impact per Specification D 4020,14-in. thickspecimen.11.3 Elongational stress per ISO 11542-2.12. Certification12.1 When requested at the time of order, the purchasershall be furnished a certification that the lot is made fromUHMW-PE plastic and meets the requirements
36、of this stan-dard.13. Packing, Packaging and Marking13.1 All packing, packaging, and marking provisions ofPractice D 3892 shall apply to this specification.14. Ordering Information14.1 All solid plastic shapes that are covered by thisstandard shall be ordered using the proper callout designation(see
37、 4.4).15. Keywords15.1 recycled UHMW-PE; reprocessed UHMW-PE; sheetUHMW-PEASTM International takes no position 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
38、of any such patent rights, and the riskof infringement of such rights, are entirely their own responsibility.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
39、are invited either for revision of this standard or for additional standardsand should be addressed to 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 r
40、eceived a fair hearing you shouldmake your views known to the ASTM Committee on Standards, at the address 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).D 6712 01 (2009)3
