1、Designation: D 3965 05Standard Specification forRigid Acrylonitrile-Butadiene-Styrene (ABS) Materials forPipe and Fittings1This standard is issued under the fixed designation D 3965; 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 (e) indicates an editorial change since the last revision or reapproval.1. Scope*1.1 This specification covers materials made from onlyvirgin ABS polymers and blends of ABS polymers suitabl
3、e foruse in the extrusion of pipe and molding of fittings.1.2 The requirements of this specification are applicableonly to the ABS polymers and blends of ABS polymers asclassified and do not address the requirements of the finishedpipe or fittings. The applicable ASTM standard specificationfor pipe
4、or fittings should be consulted for their requirements.1.3 This specification excludesABS polymers and blends ofABS polymers made from reprocessed, regrind, reclaimed, orrecycled materials. ABS rework, generated in-house by theoriginal plastic manufacturer, may be used by that originalmanufacturer,
5、provided the ABS product shipped meets thephysical and mechanical properties required by its callout inTable 1 of this specification.1.4 This specification provides a means for describing ABSmaterials used in the manufacture of pipe and fittings. It is notintended for the selection of materials. Mat
6、erial selectionshould be made by those having expertise in the plastics fieldafter careful consideration of the design and the performancerequired of the part, the environment to which it will beexposed, the fabrication process to be employed, the inherentproperties of the material other than those
7、covered by thisspecification, and the economics.1.5 This specification provides for the classification of ABSpolymers and blends of ABS polymers into groups based onfive properties: Izod impact strength at room temperature, Izodimpact strength at low temperature, deflection temperatureunder load, te
8、nsile stress at yield point, and modulus ofelasticity in tension. The properties included in this specifica-tion are those required to identify the ABS material by the cellclassifications.NOTE 1Other requirements necessary to identify particular character-istics of ABS polymers and blends of ABS pol
9、ymers will be added as testmethods become available or the need is identified.NOTE 2Due to pipe and fitting standards requirements a separatestandard is planned for recycled materials.NOTE 3This specification and ISO 7245-1984 are not equivalent.1.6 The values stated in SI units shall be the standar
10、d. Thevalues given in brackets are for information only.1.7 The following safety hazards caveat pertains only to thetest methods portion, Section 13, of this specification:Thisstandard does not purport to address all of the safety concerns,if any, associated with its use. It is the responsibility of
11、 the userof this standard to establish appropriate safety and healthpractices and determine the applicability of regulatory limita-tions prior to use.2. Referenced Documents2.1 ASTM Standards:2D 256 Test Methods for Impact Resistance of Plastics andElectrical Insulating MaterialsD 618 Practice for C
12、onditioning Plastics for TestingD 638 Test Method for Tensile Properties of PlasticsD 648 Test Method for Deflection Temperature of PlasticsUnder Flexural LoadD 792 Test Methods for Specific Gravity (Relative Density)and Density of Plastics by DisplacementD 883 Terminology Relating to PlasticsD 1600
13、 Terminology for Abbreviated Terms Relating toPlasticsD 3641 Practice for Injection Molding Test Specimens ofThermoplastic Molding and Extrusion MaterialsD 3892 Practice for Packaging/Packing of PlasticsD 4000 Classification System for Specifying Plastic Mate-rialsD 5947 Test Method for Physical Dim
14、ensions of SolidPlastics SpecimensF 412 Terminology Relating to Plastic Piping Systems2.2 ISO Standard:ISO 7245-1984 Pipes and Fittings of Acrylonitrile-Butadiene-Styrene (ABS)General Specification for1This specification is under the jurisdiction of ASTM Committee D20 onPlastics and is the direct re
15、sponsibility of Subcommittee D20.15 on ThermoplasticMaterials.Current edition approved July 1, 2005. Published July 2005. Originally approvedin 1980. Last previous edition approved in 2004 as D 3965 - 04.2For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Se
16、rvice at serviceastm.org. For Annual Book of ASTMStandards volume information, refer to the standards Document Summary page onthe ASTM website.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 19
17、428-2959, United States.Moulding and Extrusion Materials33. Terminology3.1 DefinitionsDefinitions are in accordance with Termi-nologies D 883 and F 412 and abbreviations are in accordancewith Terminology D 1600, unless otherwise indicated. Theabbreviation for acrylonitrile-butadienestyrene plastic i
18、s ABS.3.2 Definitions of Terms Specific to This Standard:3.2.1 blenda homogenous mixture of polymers preparedby melt compounding or physical combination.3.2.2 lota unit of manufacture; may consist of a blend oftwo or more production runs or batches of material.3.2.3 natural materiala polymer as it e
19、xists when initiallymade by the original producer without addition of colorants.3.2.4 reprocessed plastica thermoplastic prepared fromusually melt-processed scrap or reject parts by a plasticsprocessor or from purchased nonstandard or nonuniform virginmaterial.3.2.5 original plastic manufacturera co
20、mpany that pro-duces ABS resin by polymerization of monomers or com-pounding of virgin styrene-acrylonitrile plastic (SAN) andvirgin polybutadiene rubber, which meets the requirements ofthis specification.4. Classification4.1 ABS polymers and blends of ABS polymers shall beclassified in accordance w
21、ith Table 1. Each ABS polymer andblend of ABS polymers is given a five-digit cell classificationrepresenting the physical properties in the order in which theyare listed in Table 1.NOTE 4The manner in which selected materials are identified by thisclassification system is illustrated by an ABS Class
22、 44222 material havingthe following requirements:4.2 Although the values listed are necessary to include therange of properties available in existing materials, users shouldnot infer that every possible combination of the propertiesexists or can be obtained.4.3 Mechanical properties of pigmented or
23、colored materi-als can differ from the mechanical properties of naturalmaterial, depending on the choice of colorants and the concen-tration. The main property affected is ductility, as illustrated bya reduction in Izod impact strength and tensile elongationvalues. ABS polymers and blends of ABS pol
24、ymers containingcolorants or color concentrates, or both, shall meet the mini-mum ABS material cell classification from Table 1 for the pipeand fitting products specified.5. Materials and Manufacture5.1 The ABS material shall be produced by polymerizationof the monomers, acrylonitrile, butadiene, an
25、d styrene, or theirclosely related chemical derivatives, or from a blend of ABSpolymers from those monomers. The blend of ABS polymerscan be intimately mixed by melt compounding, or it can be ahomogenous physical mixture of discrete ABS polymers.5.2 The ABS polymer and each ABS polymer component ofa
26、 blend shall be uniform in physical properties, as defined by acell classification, and shall be of composition, size, and shapeas specified by its product specification or purchase order orcontract. The color of the ABS plastic material with addedcolorants shall be as required in the product specif
27、ication.3Available from American National Standards Institute (ANSI), 25 W. 43rd St.,4th Floor, New York, NY 10036.TABLE 1 Physical Property Requirements for ABS Pipe and Fitting MaterialsNOTEThe minimum property value for any material will determine the cell number although the maximum expected val
28、ue may fall within the nexthigher cell.ASTMTest MethodCell Limits012345Izod impact, min: D 256, Test Method A, Canti-lever Beam (Izod-Type) Testat 23C 73F, J/mA110 160 210 320 430ft-lbf/in. of notchA2 3 4 6 8at 30C 22F, J/mA50 110 160 210 270ft-lbf/in. of notchA1 2 3 4 5Deflection temperature under
29、load,min, 1.82 MPa, 264 psiannealed, 3.18 mm 0.125 in.thickness:D 648CA76 82 88 93 99FA170 180 190 200 210Tensile stress at yield point, min: D 638MPaA24 31 38 45 52psiA3500 4500 5500 6500 7500Modulus of elasticity in tension,min:D 638MPaA1380 1650 1930 2210 2480psiA200 000 240 000 280 000 320 000 3
30、60 000AUnspecified.D39650526. Chemical Composition6.1 The ABS material shall contain a minimum of 15 %acrylonitrile, 6 % butadiene, and 15 % styrene, or 15 % of acombination of styrene and substituted styrene. Additive(s)necessary for compounding, impact modification, and coloringmay be present. The
31、 final composition of the ABS materialshall meet the minimum ABS cell class from Table 1 for theproduct specified.7. Suffix Requirements7.1 When requirements are needed that supersede or supple-ment the property table or cell table requirements, they shall bespecified through the use of suffixes. In
32、 general, the first suffixletter indicates the special requirement needed and the secondletter indicates the condition or test method, or both, with athree-digit number indicating the specific requirement. Thesuffixes that may be used are listed in the Suffix Symbols andRequirements table of Classif
33、ication System D 4000.8. Basic Requirements8.1 Basic requirements from Table 1 as they apply arealways in effect unless these requirements are superseded byspecific suffix requirements, which always take precedence.9. Sampling9.1 Sampling shall be statistically adequate to satisfy therequirements of
34、 14.3.10. Number of Tests and Retests10.1 One set of specimens as prescribed in the test methodsshall be considered sufficient for each lot. The average resultfor the specimens tested shall meet the requirements of Table 1when tested in accordance with the test methods listed inSection 13.10.2 Retes
35、tIf the results of any test(s) do not meet therequirements of this specification, the test(s) may be conductedagain in accordance with an agreement between the purchaserand the seller. There shall be no agreement to lower theminimum requirement of the specification, or modify a testmethod, or change
36、 the specification limits. In retesting, theproduct requirements of this specification shall be followed. If,upon retest, failure occurs, the quantity of product representedby the test(s) shall be rejected.11. Specimen Preparation11.1 The test specimens shall be injection molded in accor-dance with
37、Practice D 3641 with melt temperature 215 6 15Cand mold temperature 40 6 15C. Average injection velocityshall be 200 6 100 mm/s as defined by the following formula:AIV 5pd2Va/4ns (1)where:AIV = average injection velocity,d = screw diameter, mm,Va= screw advance speed, mm/s,n = number of mold cavitie
38、s, ands = cross-sectional area of the test specimen.Other molding conditions shall be as specified by themanufacturer. Test specimens shall be molded in one piece andshall not be a composite of thinner sections.12. Conditioning12.1 Anneal the molded test specimen for use with TestMethod D 648 for a
39、minimum of 16 h, but not more than 24 hat 85C for materials in Cells 1 through 3, and at 95C formaterials in Cells 4 and 5. Condition all other molded testspecimens in accordance with Procedure A of Practice D 618,prior to testing.12.2 Test ConditionsConduct tests in the standard labora-tory atmosph
40、ere of 23 6 2C and 50 6 5 % relative humidity,unless otherwise specified in Table 1.13. Test Methods13.1 All specimens shall be measured using techniques inTest Method D 5947, where applicable.13.2 Impact TestingDetermine the impact strength of thematerial in accordance with the Cantilever Beam (Izo
41、d-Type)Test of Test Methods D 256, employing a 3.18 6 0.38-mm0.125 6 0.015-in. thick specimen.13.3 Deflection Temperature Under Load Determine thedeflection temperature under load, in accordance with TestMethod D 648, employing a 3.18 by 12.7 by 127-mm 18 by12by 5-in. specimen and a load of 1.82 MPa
42、 264 psi.13.4 Tensile Stress at Yield Point Determine the tensilestress at yield in accordance with Test Method D 638, employ-ing a 3.2-mm 18-in. thick Type I specimen. Test the specimenat a speed of 5.1 to 6.4 mm 0.20 to 0.25 in./min.NOTE 5Most ABS plastics exhibit a true yield point. Tensile stres
43、s atyield generally is greater than tensile stress (nominal) at break.13.5 Modulus of Elasticity in Tension Determine themodulus of elasticity in tension in accordance with TestMethod D 638, employing the same specimen size and testspeed as for tensile stress indicated in 13.4.13.6 Specific GravityD
44、etermine the specific gravity inaccordance with Test Method for Solid Plastics in Water in TestMethods D 792.14. Certification and Inspection14.1 Certification and inspection of the material suppliedunder this specification shall be for conformance to therequirements specified herein.14.2 Lot-accept
45、ance inspection shall be the basis on whichacceptance or rejection of the lot is made. The lot-acceptanceinspection shall consist of those tests listed in Table 1.14.3 Certification shall be that the material was manufac-tured, sampled, tested, and inspected in accordance with thisclassification sys
46、tem, and that the average values for the lotmeet the requirements of the specification (line callout).14.4 A report of test results shall be furnished when re-quested. The report shall consist of results of the lot-acceptanceinspection for the shipment.15. Packaging and Package Marking15.1 For packi
47、ng, packaging, and marking, the provisions ofPractice D 3892 apply.D396505315.2 PackagingThe material shall be packaged in stan-dard commercial containers so constructed as to ensure accep-tance by common or other carriers for safe transportation at thelowest rate, to the point of delivery, unless o
48、therwise specifiedin the contract or order.15.3 Package MarkingUnless otherwise agreed upon be-tween the seller and the purchaser, shipping containers shallidentify the material and its supplier, the batch or lot number,and the quantity contained.16. Keywords16.1 ABS; pipe; pipe fittings; plastic ma
49、terialsSUMMARY OF CHANGESCommittee D20 has identified the location of selected changes to this standard since the last issue,D 3965 - 04, that may impact the use of this standard. (July 1, 2005)(1) Deleted 6.2.Committee D20 has identified the location of selected changes to this standard since the last issue,D 3965 - 99, that may impact the use of this standard. (October 1, 2004)(1) Changes were made to improve clarity, conform to Clas-sification System D 4000 requiremen
