1、Designation: D6100 17Standard Specification forExtruded, Compression Molded and Injection MoldedPolyoxymethylene Shapes (POM)1This standard is issued under the fixed designation D6100; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision
2、, 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 calling out plastic product used in the fabrication ofen
3、d items or parts.1. Scope*1.1 This specification covers requirements and test methodsfor the material, dimensions, and workmanship, and the prop-erties of extruded, compression molded and injection moldedpolyoxymethylene (POM) sheet, plate, rod, and tubular barshapes, excluding pipe and fittings.1.2
4、 The properties included in this specification are thoserequired for the compositions covered. Section 4 presents aclassification system for defining requirements for particularcharacteristics important to specialized applications.1.3 This specification allows for the use of recycled plastics.1.4 Th
5、e values stated in inch-pound units are to be regardedas the standard in all property and dimensional tables. Forreference purposes, SI units are included in Table S-POM andTable 1 only.1.5 The following precautionary caveat pertains only to thetest method portions, Section 11, of this specification
6、: Thisstandard does not purport to address all of the safety concerns,if any, associated with its use. It is the responsibility of the userof this standard to establish appropriate safety, health, andenvironmental practices and determine the applicability ofregulatory limitations prior to use.NOTE 1
7、There is no known ISO equivalent to this standard.1.6 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
8、 the World Trade Organization TechnicalBarriers to Trade (TBT) Committee.2. Referenced Documents2.1 ASTM Standards:2D256 Test Methods for Determining the Izod PendulumImpact Resistance of PlasticsD618 Practice for Conditioning Plastics for TestingD638 Test Method for Tensile Properties of PlasticsD7
9、90 Test Methods for Flexural Properties of Unreinforcedand Reinforced Plastics and Electrical Insulating Materi-alsD883 Terminology Relating to PlasticsD3892 Practice for Packaging/Packing of PlasticsD6778 Classification System and Basis for Specification forPolyoxymethylene Molding and Extrusion Ma
10、terials(POM)D7209 Guide for Waste Reduction, Resource Recovery, andUse of Recycled Polymeric Materials and Products (With-drawn 2015)33. Terminology3.1 Definitions:3.1.1 regrind (plastic), na product or scrap such as sprues,runners and edge trim that have been reclaimed by shreddingand granulating f
11、or use in-house.3.1.2 For definitions of other technical terms pertaining toplastics used in this specification, see Terminology D883 orGuide D7209.1This specification is under the jurisdiction of ASTM Committee D20 onPlastics and is the direct responsibility of Subcommittee D20.15 on ThermoplasticM
12、aterials.Current edition approved Dec. 1, 2017. Published January 2018. Originallyapproved in 1997. Last previous edition approved in 2014 as D6100 - 14. DOI:10.1520/D6100-17.2For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service at serviceastm.org. For
13、 Annual Book of ASTMStandards volume information, refer to the standards Document Summary page onthe ASTM website.3The last approved version of this historical standard is referenced onwww.astm.org.*A Summary of Changes section appears at the end of this standardCopyright ASTM International, 100 Bar
14、r 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 Recomm
15、endations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.1TABLE S-POM Requirements for Polyoxymethylene (POM) ShapesType Description Class Description GradeClassification SystemD6778 Resin CalloutADescriptionUltimateTensileStrengthmin, psi(MPa)TensileElongation% a
16、t break,mmTensileModulusmin,psiDimensionalStability%,max01 Homopolymer 1 Unfilled 1 POM0111BGeneral Purpose 9000 (62) 25 350 000 0.42 POM0110B56540BGeneral Purpose 9000 (62) 15 350 000 0.40 As Specified Recycle Grade 8000 (55) 25 275 000 0.49 As Specified . . . . . . . . . . . . . . .2 Lubricated 1
17、POM0110L20A21730BGeneral purpose 6100 (42) 10 345 000 0.40 As specified . . . . . . . . . . . . . . .3 Lubricated 2 POM0110L13BGeneral Purpose 6800 (47) 10 340 000 0.4(PTFE filled)0 As specified . . . . . . . . . . . . . . .4 Lubricated 3 POM0110L20A992 General Purpose 5500 (38) 10 325 000 0.4(PTFE
18、filled) 30(46)(2400)B0 As specified . . . . . . . . . . . . . . .5 Lubricated 4 POM0110L12BGeneral Purpose 5800 (40) 5 375 000 0.4(Bearing grade)0 As specified . . . . . . . . . . . . . . .6 UV Stabilized 1 POM0131BGeneral Purpose 9000 (62) 25 350 000 0.42 POM0132BGeneral Purpose 9000 (62) 25 350 00
19、0 0.40 As specified . . . . . . . . . . . . . . . . . . .02 Copolymer 1 Unfilled 1 POM0211BGeneral Purpose 8000 (55) 25 350 000 0.42 Recycle Grade 7000 (48) 25 275 000 0.40 As Specified . . . . . . . . . . . . . . .00 Other PolyAc-etals0 As Specified 1 As Specified General Purpose . . . . . . . . .
20、. . .2 As specified Recycle Grade . . . . . . . . . . . .AApplicable Classification System D6778 resin type to be specified on purchase order.BIn accordance with Classification System D6778.3.2 Definitions of Terms Specific to This Standard:3.2.1 centerline porosity, nmicrovoids which are visiblydet
21、ectable with the unaided eye using the dye penetrationprocedure detailed in 7.4.1.3.2.2 low porosity, nproduct which either exhibits nowhite centerline or a white centerline but no dye remains whentested in accordance with section 7.4.1.3.2.3 plate, nflat stock greater than14 in.3.2.4 Porosity Level
22、 1, nproducts containing microvoidswith a pore size greater than 50 m (0.002 in.) in which dyeremains either in a broken or continuous line which does notexceed 4 % centerline porosity when tested in accordance with7.4.1.3.2.5 recycled plastic shape, na product made from up to100 % recycled plastic.
23、3.2.6 rod, nsolid cylindrical shape with a minimum diam-eter of18 in.3.2.7 sheet, nflat stock less than and including14 in. (mm)thickness.3.2.8 tubular bar, nannular shapes with minimum insidediameter of38 in. and minimum wall thickness of116 in.3.2.9 virgin plastic shape, nproduct that is produced
24、from100 % plastic resin that has not been subjected to subsequentmelt processing.4. Classification and Material4.1 Product shape and size as defined in the applicablepurchase order.4.2 This specification covers product as listed in TableS-POM. Products included in the designations reference Clas-sif
25、ication System D6778 callouts where applicable.4.2.1 The type of POM extruded, compression molded orinjection molded product is categorized by type, grade andclass depending on resin and filler compositions as defined inTable S-POM.4.3 POM shape products are categorized as General Purposeor Recycle
26、Grade in accordance with the following criteria:4.3.1 Grade 1General Purpose:4.3.1.1 Extruded, compression molded and injectionmolded product made using only 100 % POM resin. Thisspecification allows for the use of polyoxymethylene plasticmaterials that are reconstituted, recovered, or reprocessed,
27、orcombination thereof, provided that the requirements as statedin this specification are met. It is the responsibility of thesupplier and the buyer of reconstituted, recovered, or repro-cessed polyoxymethylene plastic materials, or combinationthereof, to ensure compliance. (See Guide D7209.)TABLE A-
28、1 Dimensional Requirements for POM Rod (Grade 1)Size, in.Tolerance,in.RoundnessTIR, in.Camber18 to 1 diameter +0.003/0 dia. 0.002 212 in./8 ft1to212 diameter +0.005/0 dia. 0.005 114 in./8ft212 to 8 diameter +0.250/0 dia. 0.050 1 in./8ft96 length +1/04.3.2 Grade 2Recycle Grade:4.3.2.1 Extruded, compr
29、ession molded or injection moldedproduct made using any amount up to 100 % of recycled POMplastic.D6100 1724.4 The type class and grade is further differentiated basedon dimensional stability (elevated temperature excursion test),Table S-POM and dimensional requirements, Tables A and B.4.4.1 When th
30、e level of centerline porosity needs to bedocumented it will be designated as either low porosity (LP) orP1 (Porosity Level 1) that is determined using the proceduredetailed in 7.4 and will be added to the callout as a suffix (seeExample 2 in 4.6.1.2).4.5 Property Tables:4.5.1 Table S-POM is used to
31、 describe extruded, compres-sion molded and injection molded products, except where itdoes not cover the product type being considered.4.5.2 Table 1 is used to describe extruded, compressionmolded and injection molded products not included in TableS-POM via a cell callout which includes the applicab
32、le TableS-POM type and specific properties (Designations 1 through7).4.5.3 To facilitate the incorporation of future or specialmaterials not covered by Table S-POM , the “as specified”category (OO) for type, class and grade is shown on the tablewith the basic properties to be obtained from Table 1,
33、as theyapply.4.5.4 Reinforcements and Additive MaterialsA symbol(single-letter) will be used for the major reinforcement orcombination, or both, along with two numbers that indicate thepercentage of addition by mass with the tolerances as tabulatedbelow. This must be included in all Table 1 callouts
34、 (seeExample 3 in 4.6.1.3).ToleranceSymbol Material (Based on the Total Mass)C Carbon and graphite fiber 2 %G Glass 2 %L Lubricants (for example, Depends upon material andprocessto be specified.PTFE, graphite, siliconeand molybdenum disulfide)M Mineral 2 %R Combinations of reinforcements 3 % for the
35、 total reinforcementor fillers, or both4.6 Callout DesignationA one-line system shall be usedto specify materials covered by this specification. The systemuses pre-defined cells to refer to specific aspects of thisspecification as illustrated below:4.6.1 Description:4.6.1.1 Example 1Product made fro
36、m general purposePOM homopolymer:CELL CALLOUT: S-POM0111S-POM01 = Product made from POM homopolymer in accordance withTable S-POM1 = Unfilled class1 = General purpose grade product4.6.1.2 Example 2Product made from general purposePOM copolymer, low porosity:CELL CALLOUT: S-POM0211,LPS-POM02 = Produc
37、t made from POM copolymer in accordance withTable S-POM1 = Unfilled class1 = General purpose grade productLP = Low porosity material4.6.1.3 Example 3Product made from 20 % PTFE rein-forced general purpose POM homopolymer resin:CELL CALLOUT: S-POM0143S-POM01 = Product made from POM homopolymer in acc
38、ordance withTable S-POM4 = Lubricated3 = PTFE filled4.6.1.4 Example 4Product made from general purposePOM copolymer using Table 1:CELL CALLOUT: S-POM0210 1453493 (475,000 psi)S-POM02 = Product made from POM copolymer in accordance withTable S-POM1 = Unfilled0 = As specified1 = Table 1DesignationOrde
39、r NumberProperty Value1 4 Tensile strength, TestMethod D638,min,psi(MPa)12 000(83)2 5 Elongation at break, TestMethod D638,%,min203 3 Tensile modulus, TestMethod D638,min,psi(MPa)300 000(2073)4 4 Dimensional stability, max,%, in accordance with 11.20.45 9 Flexural modulus, TestMethod D790,min,psi(MP
40、a)Specify value(475 000)6 3 Izod impact, Test MethodD256, ftlb/in. (J/m) ofnotch, min0.8(43)4.6.2 The four examples illustrate how one-line, alpha-numeric sequences identify the product compositions. A spacemust be used as a separator between the specification numberand the type designation. No sepa
41、rators are needed betweentype, class and grade. When special notes are to be included,such information should be preceded by a comma. Specialtolerances must be noted at time of order and are inserted afterthe grade in parenthesis and preceded by a comma.TABLE B-1 Dimensional Requirements for POM She
42、ets and Plates (Grades1 and 2)ANOTE 1SquarenessAll sizes18 in. max, gap when measured inaccordance with 11.4.Size, in. Thickness TolerancesLength Camber,in./ftWidth Bow, in./ft116 to316 10 %34 /4316 /214 to 1 +0.025/034 /4316 /2118 to 3 +0.050/014 /4116 /2318 and over +0.125/014 /418 /2ACompression
43、molded plate is supplied sufficiently oversize to finish to nominaldimension listed.TABLE B-2 Dimensional Requirements for POM Compression MoldedPlates (Grade 1)Size in. Thickness TolerancesLength Camber,in./ftWidth Bow, in./ft14 +0.090/038 /4 0.090/2516 +0.090/038 /4 0.090/238 +0.090/038 /4 0.090/2
44、716 +0.090/038 /4 0.090/212 +0.090/038 /4 0.090/258 +0.090/038 /4 0.090/234 +0.090/038 /4 0.090/278 +0.090/038 /4 0.090/21 +0.090/018 /4 0.050/2118 +0.090/018 /4 0.050/2114 +0.090/018 /4 0.050/2D6100 173TABLE B-2 Dimensional Requirements for POM Compression MoldedPlates (Grade 1)Size in. Thickness T
45、olerancesLength Camber,in./ftWidth Bow, in./ft138 +0.090/018 /4 0.050/2112 +0.090/018 /4 0.050/2158 +0.090/018 /4 0.050/2134 +0.090/018 /4 0.050/2178 +0.090/018 /4 0.050/22 +0.090/018 /4 0.050/25. Physical Property Requirements5.1 The physical property values listed within this specifi-cations table
46、s are to be considered minimum specificationvalues. Any requirement for specific test data for a givenproduction lot should be specified at the time of order. Ifphysical properties for products not yet included in TableS-POM are required, specify using Table 1 for extruded,compression molded and inj
47、ection molded products.6. Dimensional Requirements6.1 The type, class and grade is further differentiated basedon dimensional stability (elevated temperature excursion test),Table S-POM, and dimensional requirements, Tables A and B.Products shall be produced within commercial tolerances andwith the
48、lowest stress levels for machined parts as delineated inTables A and B for extruded, compression molded or injectionmolded products.6.2 Tubular bar dimensions shall be supplied in the unfin-ished condition, unless otherwise specified at time of order,sufficient to finish to the nominal dimension ord
49、ered.6.3 The maximum allowable camber or bow, or both, shallbe within the limits referenced in Tables A-1 and B-1.TABLE 1 Additional Detail RequirementsReinforced/Unreinforced POM ShapesNOTE 1The applicable Table S-POM callout (including resin type, fillers) must precede this table designation.DesignationOrder Number Property 0 1 2 34567 8 91 Tensile strength, Test MethodD638, min, psi (MPa)Unspecified 6000(41)8000(55)10 000(69)12 000(83)14 000(97)16 000(110)20 000(138)25
