1、Designation: D4203 07 D4203 12Standard Specification for and Basis for Specifications forStyrene-Acrylonitrile (SAN) Injection and ExtrusionMaterials1This standard is issued under the fixed designation D4203; the number immediately following the designation indicates the year oforiginal adoption or,
2、 in the case of revision, 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.This standard has been approved for use by agencies of the Department of Defense.1. Scope*1.
3、1 This specification covers unfilled, filled, and reinforced styrene acrylonitrile (SAN) materials suitable for injection moldingand extrusion.1.2 This specification classification system and subsequent line callout (specification) are intended to provide a means of callingout plastic materials used
4、 in the fabrication of end items or parts. It is not intended for the selection of materials, but only as ameans of calling out materials to be used in the manufacture of parts. Materials are to be selected by personnel withmaterials.Material selection can be made by those having expertise in the pl
5、astics field where the economics, the environment to beencountered, the plastic field only after careful consideration of the design and the performance required of the part, theenvironment to which it will be exposed, the fabrication process to be employed, the costs involved, and the inherent prop
6、ertiesof the materials, the part design, the part performance required, and the manufacturing process to be employed all enter into theselection.material other than those covered by this standard.1.3 The properties included in this specificationstandard are those required to identify the composition
7、s covered. There may beother Other requirements necessary to identify particular characteristics important to specialized applications. These will be agreedupon between the user and the supplier, by applications are to be specified using the suffixes specified in Section 75.1.4 The values stated in
8、SI units are to be regarded as the standard. The values in parentheses are given for information only(see only.IEEE/ASTM SI-10.)1.5 The following precautionary caveat pertains only to the test methods portion, Section 1511, of this specification:Thisstandard does not purport to address all of the sa
9、fety concerns, if any, associated with its use. It is the responsibility of the userof this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations priorto use.NOTE 1Although this specification and ISO 4894/1 This standard and ISO 4894-
10、1 and ISO 4894-2 address the same subject matter, but differ intechnical content. Although this standard and ISO 4894-1 and ISO 4894-2 differ in approach or detail, data obtained using either are technicallyequivalent.2. Referenced Documents2.1 ASTM Standards:2D256 Test Methods for Determining the I
11、zod Pendulum Impact Resistance of PlasticsD618 Practice for Conditioning Plastics for TestingD638 Test Method for Tensile Properties of PlasticsD648 Test Method for Deflection Temperature of Plastics Under Flexural Load in the Edgewise PositionD790 Test Methods for Flexural Properties of Unreinforce
12、d and Reinforced Plastics and Electrical Insulating MaterialsD792 Test Methods for Density and Specific Gravity (Relative Density) of Plastics by DisplacementD883 Terminology Relating to PlasticsD1238 Test Method for Melt Flow Rates of Thermoplastics by Extrusion Plastometer1 This specification is u
13、nder the jurisdiction of ASTM Committee D20 on Plastics and is the direct responsibility of Subcommittee D20.15 on ThermoplasticMaterials.15.03).Current edition approved March 1, 2007Nov. 15, 2012. Published March 2007November 2012. Originally approved in 1989. Last previous edition approved in 2000
14、2007as D4203 - 00.D4203 - 07. DOI: 10.1520/D4203-07. 10.1520/D4203-12.2 For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at serviceastm.org. For Annual Book of ASTM Standardsvolume information, refer to the standards Document Summary page on the A
15、STM website.This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Becauseit may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consu
16、lt prior editions as appropriate. In all cases only the current versionof the standard as published by ASTM is to be considered the official document.*A Summary of Changes section appears at the end of this standardCopyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken,
17、PA 19428-2959. United States1D1525 Test Method for Vicat Softening Temperature of PlasticsD1600 Terminology for Abbreviated Terms Relating to PlasticsD2584 Test Method for Ignition Loss of Cured Reinforced ResinsD3641 Practice for Injection Molding Test Specimens of Thermoplastic Molding and Extrusi
18、on MaterialsD3892 Practice for Packaging/Packing of PlasticsD4000 Classification System for Specifying Plastic MaterialsE29 Practice for Using Significant Digits in Test Data to Determine Conformance with SpecificationsE105 Practice for Probability Sampling of MaterialsIEEE/ASTM SI-10 Standard for U
19、se of the International System of Units (SI): The Modern Metric System2.2 ISO Standards:3ISO 75 Plastics and EboniteDetermination PlasticsDetermination of Temperature of Deflection Under LoadISO 178 PlasticsDetermination of Flexural Properties of Rigid PlasticsISO 180/1A PlasticsDetermination of Izo
20、d Impact Strength of Rigid MaterialsISO 294 PlasticsInjection Moulding Test Specimens of Thermoplastic MaterialsISO 306 PlasticsDetermination PlasticsThermoplastic materialsDetermination of Vicat Softening Temperature ofThermoplastics(VST)ISO 527 PlasticsDetermination of Tensile PropertiesISO 1133 P
21、lasticsDetermination of the Melt Flow Rate Mass-Flow Rate (MFR) and Melt Volume-Flow Rate (MVR) ofThermoplasticsISO 1183 PlasticsMethods for Determining the Density and Relative Density of Non-Cellular PlasticsISO 4894/14894 PlasticsStyrene/Acrylonitrile (SAN) Copolymer Molding and 4894/2 Extrusion
22、MaterialsMaterials: Part 1:Designation, Part 2: Designation System and Basis for Specifications, Part 2: Preparation of Test Specimens andDetermination of Properties3. Terminology3.1 DefinitionsDefinitions are in accordance with TerminologyThe terminology used in this classification system is inacco
23、rdance with Terminologies D883 and abbreviations are in accordance with Terminology D1600, unless otherwise indicated.The abbreviation for styrene-acrylonitrile plastics is SAN3.2 Definitions of Terms Specific to This Standard:3.2.1 lota unit of manufacture; may consist of a blend of two or more pro
24、duction runs or batches of material.4. Classification4.1 SAN compoundsmaterials are typically general-purpose materials used in either molding or extrusion processes andapplications. There is currently no group, class, or grade distinctions and no basic property table given.NOTE 2Where no basic prop
25、erty table exists, the generic family designation will be followed by three zeros, for example: SAN000.4.1.1 They are usually grouped as reinforced or unreinforced. Therefore, SAN materials are classified by Table A for reinforcedmaterials and Table B for unreinforced materials. Specialty products s
26、uch as antistatic, barrier, etc. would also utilize the suffixsystem described in Section 75.4.1.2 Each compound is given a five-digit cell classification representing the physical properties in the order in which they arelisted in the cell table.4.2 Reinforced Reinforced, filled, and lubricated ver
27、sions of the SAN materials are classified in accordance with Table A, whichspecifies the properties after the addition of reinforcements or lubricants at the nominal level indicated (see 4.2.1).4.2.1 A single letter shall be used for the major reinforcement or combination, or both, along with two di
28、gits that indicate thepercentage of addition by mass, withnominal quantity in percent by weight. (See Table 1the tolerance as tabulated below:.)3 Available from American National Standards Institute (ANSI), 25 W. 43rd St., 4th Floor, New York, NY 10036, http:/www.ansi.org.TABLE 1 Reinforcement-Fille
29、r Symbols and TolerancesSymbol Material ToleranceC Carbon- and graphite-fiberreinforced2 %G Glass-reinforced 2 %L Lubricants (PTFE, for example)graphite, silicone andmolybdenum disulfideDepends upon material andprocessto be specified.M Mineral-reinforced 2 %R Combinations of reinforcementsor filler,
30、 or both3 % for the total reinforcementD4203 122Symbol Material ToleranceC Carbon- and graphite-fiberreinforced2 %G Glass-reinforced 2 %L Lubricants (PTFE, for example)graphite, silicone andmolybdenum disulfideby agreement between the supplierand the userM Mineral-reinforced 2 %R Combinations of rei
31、nforcementsor filler, or both3 % for the total reinforcementNOTE 3This part of the system uses percent of reinforcements or additives, or both, in the callout of the modified basic material. The types andpercentages of reinforcements and additives should beare sometimes shown on the suppliers techni
32、cal data sheet unless this information is proprietaryin nature. suppliers technical data sheet. If necessary, additional callout of these reinforcements and additives can be accomplished by the use of the suffixpart of the system, as described in Section 75.NOTE 4Materials containing reinforcements
33、or fillers, or both, at nominal levels not in multiples of five are included in the nearest grade designation.For example, a material with a nominal glass fiber level of 33 % is included with a Grade G35.4.2.2 Specific requirements for reinforced, filled, or lubricated materials shall be shown by a
34、six-character designation. Thedesignation shall consist of the letter A and the five digits comprising the cell numbers for the property requirements in the orderin which they appear in Table A.4.2.2.1 Although the values listed are necessary to include the range of properties available in existing
35、materials, users shouldnot infer that every possible combination of the properties exists or can be obtained.NOTE 5An example of this classification for a reinforced SAN is as follows:The designation SAN000G30A34421:SAN000 = Styrene acrylonitrile material,G30 = Glass reinforced at 30 % nominal level
36、,A = Table A for property requirements,3 = % AN, 30 %, min,4 = Deflection temperature under load, 105C, min,4 = Specific gravity, 1.6, min,2 = Tensile strength, 80 MPa, min, and1 = Flexural modulus, 3000 MPa, min,If no properties are specified, the designation would be SAN000G30A00000.4.3 Table B cl
37、assifies all unreinforced SAN materials. Table B shall be used in the same manner as Table A.NOTE 6An example of this classification for an unreinforced SAN is as follows:The designation SAN000B22320 indicates:SAN000 = Styrene acrylonitrile material,B = Cell Table B, property requirements,2 = % AN,
38、20 %, min,2 = Vicat softening temperature, 100C, min,3 = Flow rate, 10 g/10 min, min2 = Tensile strength, 60 MPa, min, and0 = Flexural modulus, unspecified,4.3.1 Mechanical properties of pigmented or colored SAN materials can differ from the mechanical properties of natural SANmaterial, depending on
39、 the choice and concentration of colorants. The main property affected is ductility, as illustrated by areduction in Izod impact strength and tensile-elongation values. If specific properties of pigmented SAN materials are necessary,prior testing between the materials supplier and end user should be
40、 initiated. Once these agreements are reached, a classificationusing Cell Table B should be employed to ensure proper property compliance.is employed.4.4 ISO test methods and correlated cell values have been included for informational purposes. They have been provided forthose international users wi
41、shing to determine the corresponding ISO test values for a particular SAN callout.NOTE 7Using the example ASTM callout in Note 56, (ISO) SAN000B22320 would indicate:(ISO) = ISO line-property requirements,SAN000 = Styrene acrylonitrile material,B = Table B,2 = % AN, 20%, min,2 = Vicat softening point
42、, 95C, min,3 = Flow rate, 25 g/10 min, min,2 = Tensile strength, 60 MPa, min,0 = Flexural modulus, unspecified.NOTE 8Internationally, ANSI has been working with ISO to harmonize specification and designation documents in three specific areas, includingSAN. A correlation was carried out and has been
43、appended for information purposes. This study provided the basis for the correlated ISO values foundin the cell tables and the novel approach of being able to determine a specified products property requirements by either ASTM or ISO test methods.D4203 123TABLE A SAN Compounds (Reinforced)Designatio
44、nOrder Number PropertyCell Limits0 1 2 3 4 5 91 AN Content, % AN, min Unspecified 10 20 30 40 50 A(ISO, % AN, min) (Unspecified) (10) (20) (30) (40) (50) A2 Deflection temperature under load, ASTM D648,C, minBUnspecified 90 95 100 105 110 A(ISO 75, C, min) (Unspecified) (90) (95) (100) (105) (110) A
45、3 Specific gravity, ASTM D792, min Unspecified 1.1 1.2 1.4 1.6 1.8 A(ISO 1183, min) (Unspecified) (1.1) (1.2) (1.4) (1.6) (1.8) A4 Tensile strength, ASTM D638, MPa, minB Unspecified 60 80 100 120 140 A(ISO 527, MPa, min) (Unspecified) (60) (80) (100) (120) (140) A5 Flexural tangent modulus, ASTM D79
46、0 MPa, minB Unspecified 3000 4500 6000 7500 9000 A(ISO 178, MPa, min) (Unspecified) (2800) (4200) (5600) (7000) (8500) AA If specific value is required, it must appear on drawing or contract, or both.B MPa 145 = psi.TABLE B SAN Compounds (Unreinforced)DesignationOrder Number PropertyCell Limits0 1 2
47、 3 4 5 91 AN Content,% AN, min Unspecified 10 20 30 40 50 A(ISO, % AN, min) (Unspecified) (10) (20) (30) (40) (50) A2 Vicat softening point, ASTM D1525, C, min Unspecified 90 100 105 110 120 A(ISO 306, C, min) (Unspecified) (85) (95) (100) (105) (110) A3 Flow rate, ASTM D1238, g/10 minutes, min Unsp
48、ecified 2 5 10 15 20 A(ISO 1133, g/10 minutes, min) (Unspecified) (5) (15) (25) (40) (50) A4 Tensile strength, ASTM D638, MPa, minB Unspecified 50 60 70 80 95 A(ISO 527, MPa, min) (Unspecified) (50) (60) (70) (80) (95) A5 Flexural tangent modulus, ASTM D790, MPa, minB Unspecified 2600 3000 3400 3800
49、 4200 A(ISO 178, MPa, min) (Unspecified) (2400) (2800) (3200) (3600) (3900) AA If specific value is required, it must appear on drawing or contract, or both.B MPa 145 = psi.5. Ordering Information5.1 The SAN compound shall be as agreed upon between the purchaser and seller, and the following information should beincluded in the purchase order:5.1.1 Quantity and packaging;5.1.2 Cell classification, as described in Table A or Table B;5.1.3 Color reference should be made to color chip number, if available;5.1.4 Form, for example, pellets,
