1、Designation: D6261 10Standard Specification forExtruded and Compression Molded Basic Shapes Madefrom Thermoplastic Polyester (TPES)1This standard is issued under the fixed designation D6261; the number immediately following the designation indicates the year oforiginal adoption or, in the case of re
2、vision, 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 mechanical grade plastic product used
3、inthe fabrication of end items or parts.1. Scope1.1 This specification covers requirements and test methodsfor the material, dimensions, and workmanship, and the prop-erties of extruded and compression molded plate, rod andtubular bar manufactured from thermoplastic polyester.1.2 The properties incl
4、uded in this specification are thoserequired for the compositions covered. Use the classificationsystem given in Section 4 to describe requirements necessaryto identify particular characteristics important to specializedapplications.1.3 This specification allows the use of recycled plastics2(see Sec
5、tion 4).1.4 The values are stated in inch-pound units and areregarded as the standard in all property and dimensional tables.For reference purposes, SI units are also included in Table 1and Table S-TPES only.1.5 The following precautionary caveat pertains only to thetest method portions sections of
6、this specification. This stan-dard does not purport to address all of the safety concerns, ifany, 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.
7、NOTE 1There is no known ISO equivalent to this specification.2. Referenced Documents2.1 ASTM Standards:3D256 Test Methods for Determining the Izod PendulumImpact Resistance of PlasticsD618 Practice for Conditioning Plastics for TestingD638 Test Method for Tensile Properties of PlasticsD790 Test Meth
8、ods for Flexural Properties of Unreinforcedand Reinforced Plastics and Electrical Insulating MaterialsD883 Terminology Relating to PlasticsD3892 Practice for Packaging/Packing of PlasticsD4507 Specification for Thermoplastic Polyester (TPES)Unfilled and Reinforced MaterialD4000 Classification System
9、 for Specifying Plastic Materi-alsD5033 Guide for Development of ASTM Standards Relat-ing to Recycling and Use of Recycled Plastics4D5927 Classification System for Thermoplastic Polyester(TPES) Injection and Extrusion Materials Based on ISOTest Methods2.2 ANSI Standard:Z1.4-1993 Sampling Procedures
10、and Tables for Inspectionby Attributes53. Terminology3.1 Definitions:3.1.1 For definitions of other technical terms pertaining toplastics used in this specification, see Terminology D883 orGuide D5033.3.2 Definitions of Terms Specific to This Standard:3.2.1 plate, nflat stock14 in. (6.4 mm) or great
11、er.3.2.2 recycled-plastic shape, na product made from up to100 % recycled plastic.3.2.3 rod, nan extruded solid cylindrical shape with aminimum diameter of18 in. (3.2 mm).1This specification is under the jurisdiction of ASTM Committee D20 onPlastics and is the direct responsibility of Subcommittee D
12、20.20 on Plastic Products(Section D20.20.02).Current edition approved June 1, 2010. Published August 2010. Originallyapproved in 1998. Last previous edition approved in 2003 as D6261 - 98(2003).DOI: 10.1520/D6261-10.2As defined in Guide D5033.3For referenced ASTM standards, visit the ASTM website, w
13、ww.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 website.4Withdrawn. The last approved version of this historical standard is referencedon www.astm.org.5Available from America
14、n National Standards Institute (ANSI), 25 W. 43rd St.,4th Floor, New York, NY 10036, http:/www.ansi.org.1Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.3.2.4 tubular bar, nan extruded annular shape with mini-mum inside diameter of38
15、in. (9.6 mm) and minimum wallthickness of116 in. (1.6 mm).4. Classification and Material4.1 Product shape and size as defined in the applicablepurchase order.4.2 This specification covers product extruded and compres-sion molded as listed in Table S-TPES. Products included inthe designations referen
16、ce Specification D4507 or Specifica-tion D5927 callouts where applicable.4.2.1 Categorize the type of thermoplastic polyester shapeproduct by type, grade, and class depending on resin and fillercompositions as defined in Table S-TPES.4.2.2 Use the following sections to categorize each type ofthermop
17、lastic polyester shape into one of several grades:4.2.2.1 Grade 1General PurposeExtruded or compres-sion molded product made using only 100 % virgin thermo-plastic polyester resin.4.2.2.2 Grade 2RecycledExtruded or compressionmolded product made using any amount up to 100 % recycledthermoplastic pol
18、yester plastics.4.3 The type, class and grade is further differentiated basedon dimensional stability (elevated temperature excursion test),Table S-TPES, and dimensional requirements, Tables A and B.4.4 Property Tables:4.4.1 Use Table S-TPES to describe both extruded orcompression molded products.4.
19、4.2 Use Table 1 also to describe extruded or compressionmolded products not included in Table S-TPES via a cellcallout that includes the applicable Table S-TPES thermoplas-tic polyester type and specific properties (Designations 1through 7).4.4.3 To facilitate the incorporation of future or specialm
20、aterials not covered by the Table S-TPES, the “as specified”category (00) for type, class and grade is shown in the tablewith the basic properties to be obtained from Table 1, as theyapply.4.4.4 Reinforcements and Additive MaterialsA symbol(single-letter) will be used for the major reinforcement orc
21、ombination, 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.Symbol MaterialTolerance(Based on the Total Mass)C Carbon and graphite fiberreinforced6 2%G Glass-reinforced15 % glass cont
22、ent 6 3%L Lubricants (for example,PTFE, graphite andsiliconeby agreement between the supplierand the userM Mineral 6 2%R Combinations of rein-forcements or fillers, orboth6 3 % for the total reinforcement4.5 Callout DesignationA one-line system shall be usedto specify thermoplastic polyester materia
23、ls covered by thisspecification. The system uses pre-defined cells to refer tospecific aspects of this specification as illustrated below:4.5.1 Examples:4.5.1.1 Example 1Product made from general purposePBTCELL CALLOUT: S-TPES0111S-TPES01 = Product made from PBT in accordance with TableS-TPES1 = Unf
24、illed class1 = General purpose grade product4.5.1.2 Example 2Product made from general purposePETCELL CALLOUT: S-TPES0211S-TPES02 = Product made from PET in accordance with TableS-TPES1 = Unfilled class1 = General purpose grade product4.5.2 These two examples illustrate how a one-line, alpha-numeric
25、 sequence can identify the product composition, com-mercial parameters and physical characteristics of extruded orcompression molded product. A space must be used as aseparator between the specification number and the typedesignation. No separators are needed between type, class andgrade. When speci
26、al notes are to be included, such informationshall be preceded by a comma. Special tolerances must benoted at time of order and are inserted after the grade inparentheses and preceded by a comma.5. Ordering Information5.1 All shapes covered by this specification shall be orderedusing the proper call
27、out designation (see 4.5).6. Physical Property Requirements6.1 The physical property values listed within this specifi-cations tables are to be considered minimum specificationvalues. Any requirement for specific test data for a givenproduction lot shall be specified at the time of order. Use Table1
28、 to specify physical properties for extruded or compressionmolded products not yet included in Table S-TPES.7. Dimensional Requirements7.1 The type, class and grade is differentiated based ondimensional stability (elevated temperature excursion test), asindicated in Table S-TPES.7.2 Products shall b
29、e produced within commercial toler-ances and with the lowest stress levels for machined parts asdelineated in Tables A and B.7.3 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 ordered.7.
30、4 The maximum allowable camber or bow or both, shallbe within the limits referenced in Tables A and B.8. Workmanship, Finish and Appearance8.1 AppearanceThe resin material color is white to off-white. The product color shall be as published by the shapesmanufacturer. They shall be uniform in color t
31、hroughout thethickness. The specific colors and color matching shall only beas agreed to by order. It is possible that other colors will affectphysical properties.D6261 1028.2 FinishAll products shall be free of blisters, wrinkles,cracks, gouges and defects that restrict commercial use of theproduct
32、. Special surface finish shall be supplied only whenspecified in the purchase order or contract.8.3 DefectsAll products shall be free of voids, dirt,foreign material and embedded particles exceeding132 in. (0.8mm) maximum diameter as defined in 8.3.1.8.3.1 The criteria for determining the internal c
33、leanlinessshall be external visual inspection. A maximum number of twointernal defects per square foot of plate and one foot length ofrod and tubular bar are allowed. Clusters of defects less than132 in. (0.8 mm) diameter are to be counted as a single defect.9. Sampling9.1 Sampling shall be statisti
34、cally adequate to satisfy therequirements of this specification as applicable (see ANSIZ1.4-1993).9.2 For purposes of sampling, an inspection lot for exami-nation and tests shall consist of all material of the same type,class, grade and nominal size submitted for inspection at onetime.10. Number of
35、Tests10.1 Routine lot inspection shall consist of all the criteriaspecified in the applicable product tables.10.2 The criteria listed in these product tables and defini-tions are sufficient to establish conformity of the sheet, plate,rod or tubular bars to this specification. When the number oftest
36、specimens is not stated in the test method, it is acceptableto make a single determination. If more than single determi-nations and separate portions of the same sample are made, theresults shall be averaged. The final result shall conform to therequirements prescribed in this specification.11. Test
37、 Conditions11.1 Conditioning of SpecimensThe specification valuesand dimensions are based on conditioning techniques outlinedin Procedure A of Practice D618.11.2 Standard TemperatureThe tests shall be conducted atthe standard laboratory temperature of 73.4 6 3.6F (23 62C) and 50 6 5 % relative humid
38、ity.12. Test Methods12.1 Tensile stress break, elongation at break, and tensilemodulus (tangent) are in accordance with Test Method D638,at the rate of 0.2 in. (5 mm)/min.12.1.1 All plate specimens are in accordance with TestMethod D638, Type I.12.1.2 All rod specimens are in accordance with TestMet
39、hod D638.12.1.3 All tubular bar specimens are in accordance with TestMethod D638.12.2 Dimensional Stability:12.2.1 Specimen Preparation (a Minimum of Three TestSamples Required):12.2.1.1 Rods and Tubular BarPrepare each specimen bycutting a 1.5 in. (35 mm) long slice from the shape to be tested.Mach
40、ine the slice using a coolant and good machining prac-tices to a length of 1000 6 0.005 in. (25 6 0.13 mm). Each endof the specimen shall have a machined surface.12.2.1.2 PlateEach specimen shall consist of a 2 in. (50mm) diameter disc machined from the flat (diameter shall equaltest specimen thickn
41、ess with a minimum of 2.0 in. (50 mm).The same care shall be used in the machining as described in12.1.1. The thickness of the specimen shall be that of theoriginal flat from which it was cut, no machining being done onthe top or bottom faces.12.2.2 Testing ProcedureMeasure the outside diameterand t
42、hickness or length of the specimen as applicable at 73.4 61.8F (23 6 1C) to the nearest 0.0001 in. (0.0025 mm). Allmeasurements shall be done on the centerline and 90 from thecenter line for plate. Also take measurements for thicknesshalfway to center, and for diameter at mid-point. Place thespecime
43、n in a bath consisting of polyalkylene glycol or an aircirculating oven heated to the temperatures shown below.After6 h, allow the specimen to slowly cool to room temperature ata rate not to exceed 40F (22C)/h. Measure the specimen at73.4 6 1.8F (23 6 1C) and calculate the percent change ineach dime
44、nsion:300 6 5F 149 6 3C! (1)12.2.3 ReproducibilityInter-laboratory reproducibility isbeing determined and will be added within one year. PrecisionStatement will be finalized and included within two years.12.3 Lengthwise Camber and Widthwise Bow:12.3.1 Make all measurements for camber and bow usingth
45、e maximum distance rod, sheet or plate deviates from thestraight line extended from edge to edge when measured inaccordance with 12.3.2. The shape shall be oriented such thatthe weight of the product doesnt influence the results.12.3.2 Rod and Plate:12.3.2.1 RodLay each rod on its side and measure i
46、t withconcave side facing a straight edge. Measure camber from thestraight edge to the maximum concave point on the rod.Camber shall not exceed the values of Table A.12.3.2.2 PlatePlate shall not exceed the requirements ofTable B on the lengthwise ends and widthwise edges when laidon a flat surface
47、(crown side up).12.3.3 ReproducibilityInter-laboratory reproducibility isbeing determined and will be added within one year. Precisionstatement will be finalized and included within two years.12.4 Squareness (Based ona4ftNominal Length):12.4.1 Measure and compare diagonal lengths (corner tocorner).
48、Accept the product if the difference is116 in. (0.4 mm)or less and the measured minimums diagonal meets thefollowing requirements12.4.1.1 1 ft wide is 49-12 in. (125.5 cm) minimum.12.4.1.2 2 ft wide is 53-34 in. (136.5 cm) minimum.12.4.1.3 4 ft wide is 68 in. (1463.0 cm) minimum.12.4.2 If the diagon
49、al difference exceeds116 in. (0.4 mm),proceed to measure the gap (which is the deviation froma2ftsquare). The maximum allowable gap shall not exceed18 in.(0.7 mm) except for the 1 ft (25.4 cm) wide sizes of sheet andplate, which shall not exceed116 in. (0.4 mm).12.4.3 ReproducibilityInter-laboratory reproducibility isbeing determined and will be added within one year. Precisionstatement will be finalized and included within two years.D6261 10312.5 Flexural modulus are in accordance with Test MethodD790, specimen14 in. (1.4 mm) t
