1、Designation: D6100 11Standard 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 and healthpractices and determine the applicability of regulatory limita-tions prior to use.NOTE 1There is no kn
7、own ISO equivalent to this standard.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 PlasticsD790 Test Methods for Flexural Properti
8、es of Unreinforcedand Reinforced Plastics and Electrical Insulating MaterialsD883 Terminology Relating to PlasticsD3892 Practice for Packaging/Packing of PlasticsD6778 Classification for Polyoxymethylene (POM, Acetal)Molding and Extrusion MaterialsD7209 Guide for Waste Reduction, Resource Recovery,
9、andUse of Recycled Polymeric Materials and Products2.2 ANSI Standard:Z1.9-2008 Sampling Procedures for Inspection by Vari-ables33. 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 for use
10、 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 ThermoplasticMateria
11、ls.Current edition approved April 1, 2011. Published April 2011. Originallyapproved in 1997. Last previous edition approved in 2005 as D6100 - 05. DOI:10.1520/D6100-11.2For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service at serviceastm.org. For Annual
12、 Book of ASTMStandards volume information, refer to the standards Document Summary page onthe ASTM website.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
13、.Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.TABLE S-POM Requirements for Polyoxymethylene (POM) ShapesType Description Class Description GradeClassification SystemD6778 Resin CalloutADescriptionUltimateTensileStrengthmin, psi(MPa
14、)TensileElongation% at 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 0.4As Specified . . . . . . . . . . . . .
15、 . .2 Lubricated 1 POM0110L20A21730BGeneral purpose 6100 (42) 10 345 000 0.43 Lubricated 2 POM0110L13BGeneral Purpose 6800 (47) 10 340 000 0.4(PTFE filled)4 Lubricated 3 POM0110L20A992 General Purpose 5500 (38) 10 325 000 0.4(PTFE filled) 30(46)(2400)B5 Lubricated 4 POM0110L12BGeneral Purpose 5800 (
16、40) 5 375 000 0.46 UV Stabilized 1 POM0131BGeneral Purpose 9000 (62) 25 350 000 0.42 POM0132BGeneral Purpose 9000 (62) 25 350 000 0.4Bearing grade02 Copolymer 1 Unfilled 1 POM0211BGeneral Purpose 8000 (55) 25 350 000 0.42 Recycle Grade 7000 (48) 25 275 000 0.40 As Specified . . . . . . . . . . . . .
17、 . .00 OtherPolyAcetals0 As Specified 1 As Specified General Purpose . . . . . . . . . . . .2 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
18、 This Standard:3.2.1 centerline porosity, nmicrovoids which are visiblydetectable 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 sec
19、tion 7.4.1.3.2.3 plate, nflat stock greater than14 in.3.2.4 Porosity Level 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
20、 recycled plastic shape, na product made from up to100 % recycled plastic.3.2.6 rod, nsolid cylindrical shape with a minimum di-ameter 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
21、 thickness of116 in.3.2.9 virgin plastic shape, nproduct that is produced 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 list
22、ed in TableS-POM. Products included in the designations reference Clas-sification 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
23、S-POM.4.3 POM shape products are categorized as General Purposeor Recycle 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 polyoxymeth
24、ylene plasticmaterials that are reconstituted, recovered, or reprocessed, 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 material
25、s, or combinationthereof, to ensure compliance. (See Guide D7209.)TABLE A-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
26、 1 in./8ft96 length +1/04.3.2 Grade 2Recycle Grade:4.3.2.1 Extruded, compression molded or injection moldedproduct made using any amount up to 100 % of recycled POMplastic.4.4 The type class and grade is further differentiated basedon dimensional stability (elevated temperature excursion test),Table
27、 S-POM and dimensional requirements, Tables A and B.4.4.1 When the 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 (seeExamp
28、le 2 in 4.6.1.2).4.5 Property Tables:4.5.1 Table S-POM is used to describe extruded, compres-sion molded and injection molded products, except where itdoes not cover the product type being considered.D6100 1124.5.2 Table 1 is used to describe extruded, compressionmolded and injection molded products
29、 not included in TableS-POM via a cell callout which includes the applicable 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
30、 shown on the tablewith the basic properties to be obtained from Table 1, 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 t
31、olerances as tabulatedbelow. This must be included in all Table 1 callouts (seeExample 3 in 4.6.1.3).ToleranceSymbol Material (Based on the Total Mass)C Carbon and graphite fiber 62%G Glass 62%L Lubricants (for example, by agreement between thePTFE, graphite, silicone supplier and the userand molybd
32、enum disulfide)M Mineral 62%R Combinations of reinforcements 63 % for the 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
33、 as illustrated below:4.6.1 Description:4.6.1.1 Example 1Product made from 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 purp
34、osePOM copolymer, low porosity:CELL CALLOUT: S-POM0211,LPS-POM02 = Product 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:
35、CELL CALLOUT: S-POM0143S-POM01 = Product made from POM homopolymer in accordance withTable S-POM4 = Lubricated3 = PTFE filled4.6.2 The three examples illustrate how a one-line, alpha-numeric sequence can identify the product composition, com-mercial parameters and physical characteristics of extrude
36、d,compression molded and injection molded product. A spacemust be used as a separator between the specification numberand the type designation. No separators are needed betweentype, class and grade. When special notes are to be included,such information should be preceded by a comma. Specialtoleranc
37、es 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 Sheets andPlates (Grades 1 and 2)ANOTE 1SquarenessAll sizes18 in. max, gap when measured inaccordance with 11.4.Size, in. Thickness TolerancesLength Cam
38、ber,in./ftWidth Bow, in./ft116 to316 610 %34 /4316 /214 to 1 +0.025/034 /4316 /2118 to 3 +0.050/014 /4116 /2318 and over +0.125/014 /418 /2ACompression molded plate is supplied sufficiently oversize to finish to nominaldimension listed.TABLE B-2 Dimensional Requirements for POM CompressionMolded Pla
39、tes (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 0.090/2716 +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
40、+0.090/018 /4 0.050/2114 +0.090/018 /4 0.050/2138 +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
41、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
42、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
43、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
44、ered.6.3 The maximum allowable camber or bow, or both, shallbe within the limits referenced in Tables A-1 and B-1.D6100 113TABLE 1 Additional Detail RequirementsReinforced/Unreinforced POM ShapesNOTE 1The applicable Table S-POM callout (including resin type, fillers) must precede this table designat
45、ion.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)25 000(172)SpecifyValue2 Elongation at break, Test MethodD638,%,minUnspecified 1 3 5 10 20 50 100 200 SpecifyValue3 T
46、ensile modulus, Test MethodD638, min, psi (MPa)Unspecified 100 000(690)200 000(1379)300 000(2073)400 000(2760)500 000(3448)600 000(4137)800 000(5516)1 000 000(6895)SpecifyValue4 Dimensional stability, max, %,in accordance with 11.2Unspecified 0.1 0.2 0.3 0.4 0.6 0.8 1.0 1.5 SpecifyValue5 Flexural mo
47、dulus, Test MethodD790, min, psi (MPa)Unspecified 250 000(1649)350 000(2400)450 000(3100)550 000(3792)650 000(4482)750 000(5171)1 000 000(6895)1 500 000(10 343)SpecifyValue6 Izod impact, Test Method D256,ftlb/in. (J/m) of notch, minUnspecified 0.4(21)0.6(32)0.8(43)1.0(53)2.0(107)3.0(160)4.5(240)6.0(
48、320)SpecifyValue7. Workmanship, Finish, and Appearance7.1 AppearanceThe color of products shall be as pub-lished by the shapes manufacturer. They shall be uniform incolor throughout the thickness. Specific colors and colormatching only as agreed to by order. Physical properties aresometimes affected
49、 by colors.7.2 FinishAll products shall be free of blisters, wrinkles,cracks, gouges and defects that restrict commercial use of theproduct. Special surface finish shall be supplied only whenspecified in the purchase order or contract.7.3 DefectsAll products shall be free of dirt, foreignmaterial and embedded particles exceeding132 in. maximumdiameter as defined in 7.3.1.7.3.1 The criteria for determining the internal cleanlinessshall be external visual inspection. A maximum
