ASTM D5740-2003 Standard Guide for Writing Material Standards in the Classification D4000 Format《D 4000格式类别中的材料标准书写用标准指南》.pdf

1、Designation: D 5740 03Standard 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 (e) 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

3、template 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 _ Molding and Extrusion Materials (_)1. Scope*1.1 This classification system covers _ materials suitablefor

4、_. 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. There may beother requirements necessary to identify particular character-istics important to sp

5、ecialized applications. These may bespecified by using the suffixes 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 intended for the

6、 selection of materials. Materialselection should be made by those having expertise in theplastic field 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 involved, and the in

7、herent 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 does not purpor

8、t 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 Standards:D 618 Prac

9、tice for Conditioning Plastics for Testing2D 883 Terminology Relating to Plastics2D 1600 Terminology for Abbreviated Terms Relating toPlastics2D 3892 Practice for Packaging/Packing of Plastics3D 4000 Classification System for Specifying Plastic Mate-rials3D 4066 Specification for Nylon Injection and

10、 ExtrusionMaterials (PA)3D 5033 Guide for Development of ASTM Standards Relat-ing to Recycling and Use of Recycled Plastics4NOTE 2Omit if use of recycled plastic is not allowed.D 5630 Test Method for Ash Content in Plastics4D 6779 Classification System for Polyamide Molding andExtrusion Materials (P

11、A)4E29 Practice for Using Significant Digits in Test Data toDetermine Conformance with Specifications52.2 ISO Standards:6ISO 34511 PlasticsDetermination of Ash ContentPart1: General Methods3. Terminology3.1 Except for the terms defined below, the terminologyused in this classification system is in a

12、ccordance 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 July 10, 2003. Published October 2003. Originallyapproved in 19

13、95. Last previous edition approved in 1997 as D 5740 97.2Annual Book of ASTM Standards, Vol 08.01.3Annual Book of ASTM Standards, Vol 08.02.4Annual Book of ASTM Standards, Vol 08.03.5Annual Book of ASTM Standards, Vol 14.02.6Available from American National Standards Institute (ANSI), 25 W. 43rd St.

14、,4th Floor, New York, NY 10036.1*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.4. Classification4.1 _ materials are classified into groups according totheir compositio

15、n. 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 4066. The property table should contain a footnote referringto Section _ for reference to specimen source and prepara-tion.NOTE 3An

16、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 _ (grade).4.1.1 Reinforced, filled, and lubricated versions of _materials that are found in Table _ ar

17、e 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 andtwo digits, in multiples of 5, that indicate the nominal quantityin percent by weight. Thus, a g

18、rade 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 requirements given Table _ (grade).The reinforcement letter designations and associated tolerance leve

19、ls 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 62%J Boron 62%K Calcium carbonate 62%L Lubricants (for example: PTFE, graphite) Depends uponmat

20、erial 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 Talcum 62%V Metal 62%W Wood 62%X Not specified To be specifiedAAsh content of filled and/or reinfo

21、rced materials may be determined usingeither Test Method D 5630 or ISO 3451-1 where applicable.BAdditional symbols may be added to this table as required.NOTE 4This part of the classification system uses the percent ofreinforcements or additives, or both, in the callout of the modified basicmaterial

22、. The types and percentages of reinforcements and additivesshould be shown on the suppliers technical data sheet unless they areproprietary in nature. If necessary, additional callout of these reinforce-ments and additives can be accomplished by use of the suffix part of thesystem (see Section 5).4.

23、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 _ and A or B. Table _ is us

24、ed 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 reinforcement used and two digitsth

25、at 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 spheres or balls, and 33 for

26、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 letterdesignations are shown in the follow

27、ing 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 RovingS FlakeT CordV Veneer

28、W 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 propertyrequirements in the or

29、der 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, usersshould not infer that every possible combination of theproperties exists or can be obtained.4.2.3 When the grade of the basic material is not k

30、nown, oris not important, the use of the “0” grade classification shall beused for the reinforced materials in this system.D5740032NOTE 5An example of this classification for a reinforced _ materialis given as follows. The designation _ would indicate the followingmaterial requirements._ = _ from Ta

31、ble _,_ = _,_ = _,_ = _,_ = _,_ = _, 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 s

32、uffixes can be found in Classification SystemD 4000 (Table 3) and may 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 table

33、s 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 inTables _

34、, _, _, 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 E 29.7.2.1 With the absolute method, an observed value or acalculated val

35、ue 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 shall be constituted as a unit of manufac-ture as prepared

36、for shipment and may consist of a blend of twoor more “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. Conditioning1

37、0.1 Test specimens shall be conditioned in the standardlaboratory atmosphere in accordance with Procedure A ofPractice D 618 before performing the required tests.NOTE 6If another conditioning procedure is used, replace the previ-ous one.10.2 Conduct those tests influenced by ambient conditionsin the

38、 standard 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 t

39、herequirements 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

40、 basis 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

41、specifica-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, andtha

42、t the average values for the lot meet the requirements of thespecification (line callout).12.5 A report of test results shall 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

43、.NOTE 7If recycled plastics are allowed in the standard, insert thefollowing phrase after the word “shipment” in the last sentence of 12.5:“the percent by weight of recycled plastic, as defined in 3.1 of GuideD 5033, if requested.”13. Packaging, Packing, and Marking13.1 The provisions of Practice D

44、3892 apply to packaging,packing, and marking of containers for plastic materials.14. Keywords14.1 classification; classification system; line callout; plasticmaterialsD5740033APPENDIXES(Nonmandatory Information)X1. LIST BY SECTIONS/EXPLANATORY INFORMATIONX1.1 ScopeModify 1.1 for material and process

45、ing.X1.2 Referenced DocumentsAdd documents as requiredand, if necessary, use footnotes in addition to those includedand renumber footnotes as required.X1.3 TerminologyInclude new terms, definitions, andabbreviated terms as developed cooperatively between thewriter of the standard and Subcommittee D2

46、0.92.X1.4 ClassificationModify for material, 4.1. Consultcurrent Classification D 4000 for listing.X1.5 SuffxesIf suffixes 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 4066.X1.6 General

47、RequirementsIncludes basic requirementsas found in Classification D 4000.X1.7 Detail Requirements.X1.8 Sampling.X1.9 Specimen 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

48、.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 4066 can be used as an example of a basic propertytable.X2.3 Develop Cell TablesAan

49、d B for the materials that areused. Cell tables found in Specification D 4066 can be used asexamples.X2.4 Certain thermoplastic and thermosetting materialswill require a modification of the different sections, dependingon the standard being drafted.SUMMARY OF CHANGESThis section identifies the location of selected changes to this guide. For the convenience of the user, Committee D20 hashighlighted those changes that may impact the use of thi