1、Designation: D6261 14Standard 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. Scope*1.1 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 inc
4、luded 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 Se
5、ction 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 standard.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 Methods f
8、or Flexural Properties of Unreinforcedand Reinforced Plastics and Electrical Insulating Materi-alsD883 Terminology Relating to PlasticsD3892 Practice for Packaging/Packing of PlasticsD4507 Specification for Thermoplastic Polyester (TPES)Materials (Withdrawn 1999)4D4000 Classification System for Spec
9、ifying Plastic Materi-alsD5927 Classification System for Thermoplastic Polyester(TPES) Injection and Extrusion Materials Based on ISOTest MethodsD7209 Guide for Waste Reduction, Resource Recovery, andUse of Recycled Polymeric Materials and Products3. Terminology3.1 Definitions:3.1.1 For definitions
10、of other technical terms pertaining toplastics used in this specification, see Terminology D883 orGuide D7209.3.2 Definitions of Terms Specific to This Standard:1This specification is under the jurisdiction of ASTM Committee D20 onPlastics and is the direct responsibility of Subcommittee D20.15 on T
11、hermoplasticMaterials (Section D20.15.21).Current edition approved April 1, 2014. Published April 2014. Originallyapproved in 1998. Last previous edition approved in 2013 as D6261 - 13. DOI:10.1520/D6261-14.2As defined in Guide D7209.3For referenced ASTM standards, visit the ASTM website, www.astm.o
12、rg, orcontact ASTM Customer Service at serviceastm.org. For Annual Book of ASTMStandards volume information, refer to the standards Document Summary page onthe ASTM website.4The last approved version of this historical standard is referenced onwww.astm.org.*A Summary of Changes section appears at th
13、e end of this standardCopyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States13.2.1 plate, nflat stock14 in. (6.4 mm) or greater.3.2.2 recycled-plastic shape, na product made from up to100 % recycled plastic.3.2.3 rod, na solid cylindrical sh
14、ape with a minimumdiameter of18 in. (3.2 mm).3.2.4 tubular bar, nan annular shape with minimum insidediameter of38 in. (9.6 mm) and minimum wall thickness of116in. (1.6 mm).4. Classification and Material4.1 Product shape and size as defined in the applicablepurchase order.4.2 This specification cove
15、rs product extruded and compres-sion molded as listed in Table S-TPES. Products included inthe designations reference 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 a
16、nd fillercompositions as defined in Table S-TPES.4.2.2 Use the following sections to categorize each type ofthermoplastic 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
17、.2 Grade 2RecycledExtruded or compressionmolded product made using any amount up to 100 % recycledthermoplastic polyester plastics.4.3 The type, class and grade is further differentiated basedon dimensional stability (elevated temperature excursion test),Table S-TPES, and dimensional requirements, T
18、ables A and B.4.4 Property Tables:4.4.1 Use Table S-TPES to describe both extruded orcompression molded products.4.4.2 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
19、 type and specific properties (Designations 1through 7).4.4.3 To facilitate the incorporation of future or specialmaterials 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 theyap
20、ply.4.4.4 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.Symbol M
21、aterialTolerance(Based on the Total Mass)C Carbon and graphite fiberreinforced2%G Glass-reinforced15 % glass content 3 %L Lubricants (for example,PTFE, graphite andsiliconeby agreement between the supplierand the userM Mineral 2 %R Combinations ofreinforcements orfillers, or both 3 % for the total r
22、einforcement4.5 Callout DesignationAone-line system shall be used tospecify thermoplastic polyester materials 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 gener
23、al purposePBTCELL CALLOUT: S-TPES0111S-TPES01 = Product made from PBT in accordance with TableS-TPES1 = Unfilled 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 = Unfil
24、led class1 = General purpose grade product4.5.2 These two examples illustrate how a one-line, alpha-numeric 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 spec
25、ification number and the typedesignation. No separators are needed between type, class andgrade. When special 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 comm
26、a.5. Ordering Information5.1 All shapes covered by this specification shall be orderedusing the proper callout 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 requi
27、rement for specific test data for a givenproduction lot shall be specified at the time of order. Use TableD6261 1421 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 b
28、ased ondimensional stability (elevated temperature excursion test), asindicated in Table S-TPES.7.2 Products shall be 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-i
29、shed condition, unless otherwise specified at time of order,sufficient to finish to the nominal dimension ordered.7.4 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 wh
30、ite to off-white. The product color shall be as published by the shapesmanufacturer. They shall be uniform in color throughout thethickness. The specific colors and color matching shall only beas agreed to by order. It is possible that other colors will affectphysical properties.8.2 FinishAll produc
31、ts 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.8.3 DefectsAll products shall be free of voids, dirt,foreign material and embedded particles exc
32、eeding132 in. (0.8mm) maximum diameter as defined in 8.3.1.8.3.1 The criteria for determining the internal cleanlinessshall 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
33、than132 in. (0.8 mm) diameter are to be counted as a single defect.9. Sampling9.1 Sampling shall be statistically adequate to satisfy therequirements of this specification as applicable.9.2 For purposes of sampling, an inspection lot for exami-nation and tests shall consist of all material of the sa
34、me type,class, grade and nominal size submitted for inspection at onetime.10. Number of 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 conformit
35、y of the sheet, plate,rod or tubular bars to this specification. When the number oftest 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
36、 final result shall conform to therequirements prescribed in this specification.11. Test 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 a
37、tthe standard laboratory temperature of 73.4 6 3.6F (23 62C) and 50 6 10 % relative humidity.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 accord
38、ance with TestMethod D638, Type I.12.1.2 All rod specimens are in accordance with TestMethod 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 BarPrep
39、are each specimen bycutting a 1.5 in. (35 mm) long slice from the shape to be tested.Machine 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
40、in. (50mm) diameter disc machined from the flat (diameter shall equaltest specimen thickness 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
41、 done onthe top or bottom faces.12.2.2 Testing ProcedureMeasure the outside diameterand thickness 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 mea
42、surements for thicknesshalfway to center, and for diameter at mid-point. Place thespecimen 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.
43、Measure the specimen at73.4 6 1.8F (23 6 1C) and calculate the percent change ineach dimension:30065F 14963C! (1)12.3 Lengthwise Camber and Widthwise Bow:12.3.1 Make all measurements for camber and bow usingthe maximum distance rod, sheet or plate deviates from thestraight line extended from edge to
44、 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 it withconcave side facing a straight edge. Measure camber from thestraight edge to the maxi
45、mum concave point on the rod.Camber shall not exceed the values of Table A.D6261 14312.3.2.2 PlatePlate shall not exceed the requirements ofTable B on the lengthwise ends and widthwise edges when laidon a flat surface (crown side up).12.4 Squareness (Based ona4ftNominal Length):12.4.1 Measure and co
46、mpare diagonal lengths (corner tocorner). 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
47、. (1463.0 cm) minimum.12.4.2 If the diagonal 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
48、mm).12.5 Flexural modulus is measured in accordance with TestMethod D790, specimen14 in. (6.4 mm) thick maximum,testing speed 0.11 in. (2.8 mm)/min. Specimens shall bemachined from shape in accordance with the Test Specimenssection in Test Method D790.12.6 Izod impact is measured in accordance with
49、TestMethod D256, Method A, Fig. 4, notched. Specimens shall bemachined from shape in accordance with Test Method D256,Fig. 6 with14 in. (6.4 mm) width maximum specimen.13. Certification13.1 When requested at the time of order, the purchasershall be furnished a certification that the lot is made from therequired thermoplastic polyester plastic (percent recycle, ifapplicable) and meets the requirements of this specification.14. Packing, Packaging and Marking14.1 All packing, packaging, and marking provisions ofPractice D3892 sh
