1、Designation: D 5740 09Standard Guide forWriting Material Standards in the Classification D 4000Format1This standard is issued under the fixed designation D 5740; 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.INTRODUCTIONThis guide has been prepared to aid in the writing of material standards using the ClassificationD 4000 format. The following t
3、emplate is included which might be used directly for a draft documentsimply by filling in the blanks. See appendixes for additional explanatory information.Standard Classification System for and Basis for Specification for _ Molding and Extrusion Materials (_)1. Scope*1.1 This classification system
4、covers _ materials suitablefor _. The inclusion or exclusion of recycledplastics in this classification system must be addressed here.1.2 The properties included in this standard are thoserequired to identify the compositions covered. Other require-ments necessary to identify particular characterist
5、ics importantto specialized applications are to be specified by using thesuffixes as given in Section 5.1.3 This classification system and subsequent line callout(specification) are intended to provide a means of calling outplastic materials used in the fabrication of end items or parts.It is not in
6、tended for the selection of materials. Materialselection can be made by those having expertise in the plasticfield only after careful consideration of the design and theperformance required of the part, the environment to which itwill be exposed, the fabrication process to be employed, thecosts invo
7、lved, and the inherent properties of the material otherthan those covered by this standard.NOTE 1Insert Note 1 here to show the appropriate ISO equivalencystatement.1.4 The following precautionary caveat pertains only to thetest method portion, Section 11, of this classification system:This standard
8、 does not purport to address all of the safetyconcerns, if any, associated with its use. It is the responsibilityof the user of this standard to establish appropriate safety andhealth practices and determine the applicability of regulatorylimitations prior to use.2. Referenced Documents2.1 ASTM Stan
9、dards:2D 618 Practice for Conditioning Plastics for TestingD 883 Terminology Relating to PlasticsD 1600 Terminology for Abbreviated Terms Relating toPlasticsD 3892 Practice for Packaging/Packing of PlasticsD 4000 Classification System for Specifying Plastic Mate-rialsD 5205 Classification System for
10、 Polyetherimide (PEI) Ma-terialsNOTE 2Omit if use of recycled plastic is not allowed.D 5630 Test Method for Ash Content in PlasticsD 6779 Classification System for Polyamide Molding andExtrusion Materials (PA)D 7209 Guide for Waste Reduction, Resource Recovery,and Use of Recycled Polymeric Materials
11、 and ProductsE29 Practice for Using Significant Digits in Test Data toDetermine Conformance with Specifications2.2 ISO Standards:3ISO 34511 PlasticsDetermination of Ash ContentPart1: General Methods3. Terminology3.1 Except for the terms defined below, the terminologyused in this classification syste
12、m is in accordance with Termi-nologies D 883 and D 1600.1This guide is under the jurisdiction of ASTM Committee D20 on Plastics andis the direct responsibility of Subcommittee D20.94 on Government/IndustryStandardization.Current edition approved Sept. 1, 2009. Published September 2009. Originallyapp
13、roved in 1995. Last previous edition approved in 2003 as D 5740 03.2For 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 we
14、bsite.3Available from American National Standards Institute (ANSI), 25 W. 43rd St.,4th Floor, New York, NY 10036, http:/www.ansi.org.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,
15、United States.4. Classification4.1 _ materials are classified into groups according totheir composition. These groups are subdivided into classesand grades as shown in the Basic Property Table (Table _).Anexample of a basic property table can be found in SpecificationD 6779. The property table conta
16、ins a footnote referring toSection _ for reference to specimen source and preparation.NOTE 3An example of this classification system is given as follows:The designation _ indicates the following:_ = _ as found in Terminology D 1600,_ = _ (group),_ = _ (class), and_ = requirements given Table _ (grad
17、e).4.1.1 Reinforced, filled, and lubricated versions of _materials that are found in Table _ are classified accordingto the reinforcement used and the nominal level, by weightpercent, of the reinforcement. The grade is identified by asingle letter that indicates the filler or reinforcement used andt
18、wo digits, in multiples of 5, that indicate the nominal quantityin percent by weight. Thus, a grade containing 35 % glassreinforcement would be indicated by _ G35. This desig-nation indicates_ = _ as found in Terminology D 1600,_ = _ (group),_ = _ (class), and_ = 35 % glass reinforcement and require
19、ments given Table _ (grade).The reinforcement letter designations and associated tolerance levels areshown in the following table:TABLE 1 Reinforcement-FillerASymbolsBand TolerancesSymbol Material ToleranceC Carbon and graphite 62%D Alumina trihydrate 62%E Clay 62%F Cellulose 62%G Glass 62%H Aramid
20、62%J Boron 62%K Calcium carbonate 62%L Lubricants (for example: PTFE, graphite) Depends uponmaterial andprocessto bespecified.M Mineral 62%N Natural organic (for example: cotton, sisal,hemp, flax)62%P Mica 62%Q Silica 62%R Combinations of reinforcements and/or fillers 62%S Synthetic organic 62%T Tal
21、cum 62%V Metal 62%W Wood 62%X Not specified To be specifiedAAsh content of filled and/or reinforced materials is to be determined using eitherTest Method D 5630 or ISO 3451-1 where applicable.BAdditional symbols will be added to this table as required.NOTE 4This part of the classification system use
22、s the percent ofreinforcements or additives, or both, in the callout of the modified basicmaterial. The types and percentages of reinforcements and additives aresometimes shown on the suppliers technical data sheet. If necessary,additional callout of these reinforcements and additives can be accom-p
23、lished by use of the suffix part of the system (see Section 5).NOTE 5Materials containing reinforcements or fillers, or both, atnominal levels not in multiples of five are included in the nearest gradedesignation. For example, a material with a nominal glass fiber level of33 % is included with Grade
24、 G35 as shown in 4.1.1.4.1.2 To facilitate incorporation of future or special materi-als the “other” category for group (00), class (0), and grade (0)is shown in Table _.4.2 Reinforced, filled, and lubricated versions of _ mate-rials that are not in Table _ are classified in accordance withTables _
25、and A or B. Table _ is used to specify the Group orthe group and class of _ and Table A or B is used to specifythe property requirements.4.2.1 Reinforced, filled, and lubricated variations of thebasic materials are identified by a single letter from Table 1 thatindicates the filler and/or reinforcem
26、ent used and two digitsthat indicate the nominal quantity in percent by weight. Asecond letter, from Table 1a, when desired, is used to indicatethe form or structure of the reinforcement and/or filler, but isnot used for functional mixtures. Thus, a letter designation Gfor glass, E for beads or sphe
27、res or balls, and 33 for percent byweight, GE33, specifies a reinforced or filled material with 33percent by weight in the form of glass beads, spheres, or balls.The reinforcement letter designations and associated tolerancelevels are shown in the previous table. Form and structure letterdesignation
28、s are shown in the following table:TABLE 1a Symbols for the Form or Structure of Fillers and Rein-forcing MaterialsSymbol Form or StructureC Chips, cuttingsD Fines, powdersE Beads, spheres, ballsF FiberG GroundH WhiskerK Knitted fabricL LayerM Mat (fabric, thick)N Non-woven (fabric, thin)P PaperR Ro
29、vingS FlakeT CordV VeneerW Woven fabricYYarnX Not specified4.2.2 Specific requirements for reinforced, filled, or lubri-cated _ materials shall be shown by a six-character desig-nation. The designation will consist of the letter “A” or “B” andthe five digits comprising the cell numbers for the prope
30、rtyrequirements in the order as they appear in Tables A or B.4.2.2.1 Although the values listed are necessary to includethe range of properties available in existing materials, notevery possible combination of the properties exists or can beobtained.4.2.3 When the grade of the basic material is not
31、known, oris not important, the use of the “0” grade classification shall beused for the reinforced materials in this system.D5740092NOTE 6An example of this classification for a reinforced _ materialis given as follows. The designation _ would indicate the followingmaterial requirements._ = _ from T
32、able _,_ = _,_ = _,_ = _,_ = _,_ = _, and_ = _.If no properties are specified, the designation would be _.5. Suffixes5.1 When additional requirements are needed that are notcovered by the basic requirements or cell-table requirements,they shall be indicated through the use of suffixes.5.2 A list of
33、suffixes can be found in Classification SystemD 4000 (Table 3) and are to be used for additional requirementsas appropriate. Additional suffixes will be added to thatstandard as test methods and requirements are developed andrequested.6. General Requirements6.1 Basic requirements from the property t
34、ables or celltables are always in effect unless superseded by specific suffixrequirements, which always take precedence.6.2 The plastics composition shall be uniform and shallconform to the requirements specified herein.7. Detail Requirements7.1 The materials shall conform to the requirements inTabl
35、es _, _, _, and suffix requirements as they apply.7.2 For purposes of determining conformance, all specifiedlimits for a specification (line callout) based on this classifica-tion system are absolute limits, as defined in Practice E29.7.2.1 With the absolute method, an observed value or acalculated
36、value is not rounded, but is to be compared directlywith the limiting value. Conformance or nonconformance isbased on this comparison.8. Sampling8.1 Sampling shall be statistically adequate to satisfy therequirements of 12.4.8.2 A batch or lot is construed as a unit of manufacture asprepared for shi
37、pment and can consist of a blend of two ormore “production runs.”9. Specimen Preparation9.1 Indicate the source of the test specimens for the relevanttest methods.9.2 Prepare the specimens by a _ process in accordancewith _. An example is found in Classification SystemD 6779.10. Conditioning10.1 Tes
38、t specimens shall be conditioned in the standardlaboratory atmosphere in accordance with Procedure A ofPractice D 618 before performing the required tests.NOTE 7If another conditioning procedure is used, replace the previ-ous one.10.2 Conduct those tests influenced by ambient conditionsin the standa
39、rd laboratory atmosphere of 23 6 2C and 50 65 % relative humidity in accordance with Practice D 618.11. Test Methods11.1 Determine the properties enumerated in this classifica-tion system by means of the test methods referenced in Section2.11.1.1 The number of tests shall be consistent with therequi
40、rements of Section 8 and 12.4.12. Inspection and Certification12.1 Inspection and certification of the material suppliedwith reference to a specification based on this classificationsystem shall be for conformance to the requirements specifiedherein.12.2 Lot-acceptance inspection shall be the basis
41、on whichacceptance or rejection of the lot is made. The lot-acceptanceinspection shall consist of:12.2.1 _.12.2.2 _.12.3 Periodic check inspection with reference to a specifi-cation based upon this classification system shall consist of thetests for all requirements of the material under the specifi
42、ca-tion. Inspection frequency shall be adequate to ensure thematerial is certifiable in accordance with 12.4.12.4 Certification shall be that the material was manufac-tured by a process in statistical control, sampled, tested, andinspected in accordance with this classification system, andthat the a
43、verage values for the lot meet the requirements of thespecification (line callout).NOTE 8The ASTM publication Manual on Presentation of Data andControl Chart Analysis, 7th Edition, stock number MNL7A, providesdetailed information about statistical process control.12.5 A report of test results shall
44、be furnished when re-quested. The report shall consist of results of the lot-acceptanceinspection for the shipment and the results of the most recentperiodic-check inspection.NOTE 9If recycled plastics are allowed in the standard, insert thefollowing phrase after the word “shipment” in the last sent
45、ence of 12.5:“;the percent by weight of recycled plastic, as defined in 3.1.47 of GuideD 7209, if requested,”13. Packaging, Packing, and Marking13.1 The provisions of Practice D 3892 apply to packaging,packing, and marking of containers for plastic materials.14. Keywords14.1 classification; classifi
46、cation system; line callout; plasticmaterialsD5740093APPENDIXES(Nonmandatory Information)X1. LIST BY SECTIONS/EXPLANATORY INFORMATIONX1.1 ScopeModify 1.1 for material and processing.X1.2 Referenced DocumentsAdd documents as requiredand, if necessary, use footnotes in addition to those includedand re
47、number footnotes as required.X1.3 TerminologyInclude new terms, definitions, andabbreviated terms as developed cooperatively between thewriter of the standard and Subcommittee D20.92.X1.4 ClassificationModify for material, 4.1. Consultcurrent Classification D 4000 for listing.X1.5 SuffxesIf suffixes
48、 are needed that are specific to thematerials being classified, use the single-letter and two-digitsystem as found, for example, in Section 5 of SpecificationD 5205.X1.6 General RequirementsIncludes basic requirementsas found in Classification D 4000.X1.7 Detail Requirements.X1.8 Sampling.X1.9 Speci
49、men PreparationExpand as required.X1.10 ConditioningModify for material.X1.11 Test Methods.X1.12 Inspection and Certification.X1.13 Packaging, Packing, and Marking.X1.14 Keywords.X2. GENERAL INFORMATIONX2.1 Fill in the material and examples for which thestandard applies.X2.2 The basic property table is to use the abbreviations(symbols) from Classification D 4000. Table PA in Specifica-tion D 6779 can be used as an example of a basic pr
