1、Designation: D 5436 03 (Reapproved 2008)Standard Specification forCast Poly(Methyl Methacrylate) Plastic Rods, Tubes, andShapes1This standard is issued under the fixed designation D 5436; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revis
2、ion, 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*1.1 This specification
3、covers poly(methyl methacrylate)rods, tubes, and other shapes produced by casting or machiningcast blanks. This specification does not apply to heat-formedand molded or extruded parts and shapes, or sections that aremade by assembling or joining two or more pieces.NOTE 1The properties included in th
4、is specification are those re-quired to identify the types and grades of materials covered. There may beother requirements necessary to identify particular characteristics.1.2 This standard does not purport to address all of thesafety concerns, if any, associated with its use. It is theresponsibilit
5、y of the user of this standard to establish appro-priate safety and health practices and determine the applica-bility of regulatory limitations prior to use.NOTE 2There is no known ISO equivalent to this standard.2. Referenced Documents2.1 ASTM Standards:2D 542 Test Method for Index of Refraction of
6、 TransparentOrganic PlasticsD 570 Test Method for Water Absorption of PlasticsD 618 Practice for Conditioning Plastics for TestingD 638 Test Method for Tensile Properties of PlasticsD 648 Test Method for Deflection Temperature of PlasticsUnder Flexural Load in the Edgewise PositionD 792 Test Methods
7、 for Density and Specific Gravity (Rela-tive Density) of Plastics by DisplacementD 883 Terminology Relating to PlasticsD 1003 Test Method for Haze and Luminous Transmittanceof Transparent PlasticsD 1600 Terminology for Abbreviated Terms Relating toPlasticsD 3892 Practice for Packaging/Packing of Pla
8、sticsE29 Practice for Using Significant Digits in Test Data toDetermine Conformance with Specifications3. Terminology3.1 The terminology used in this specification is in accor-dance with Terminology D 883 and Terminology D 1600.4. Classification4.1 TypesThis specification covers two types of castmet
9、hacrylate plastics:4.1.1 Type UVAMaterial having ultraviolet-lightabsorbingproperties as shown in Table 1.4.1.2 Type UVTMaterial not subject to the light-absorbingproperties shown in Table 1.4.2 FinishCastings may be specified with the followingfinishes:4.2.1 Finish 1Rods, tubes, and shapes having a
10、 smoothsurface finish obtained either in the casting process or byhighly polishing the surface.4.2.2 Finish 2Rods, tubes, and shapes having a rough,unfinished surface which may be frosted, abraded, sanded,machined, or as-cast.NOTE 3The sawed ends of Finish 1 and Finish 2 rods, tubes, andshapes are n
11、ot polished.5. General Requirements5.1 Finish 1 and Finish 2 cast tubes are subject to thefollowing permissible variations from the specified dimen-sions:5.1.1 Cast tubes may be specified with either TypeAor TypeB wall thickness tolerances as listed in Table 2. Type Atolerances are specified for app
12、lications where wall thickness iscritical to performance, otherwise Type B is generally speci-fied.5.1.2 Cast tubes are subject to the outside-diameter toler-ances listed in Table 3.5.1.3 Cut-to-size lengths of cast tube are subject to thelength tolerances listed in Table 4.5.2 Finish 1 and Finish 2
13、 cast rods are subject to thefollowing dimensions and tolerances.1This specification is under the jurisdiction of ASTM Committee D20 onPlastics and is the direct responsibility of Subcommittee D20.15 on ThermoplasticMaterials.Current edition approved Nov. 1, 2008. Published December 2008. Originally
14、approved in 1993. Last previous edition approved in 2003 as D 5436 03.2For referenced ASTM standards, visit the ASTM website, www.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
15、 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 19428-2959, United States.5.2.1 Cast rods are subject to the diameter tolerances listedin Table 5.5.2.2 Cut-to-size lengths of cast rod
16、are subject to the lengthtolerances listed in Table 4.5.3 Tolerances for shapes other than simple rods and tubesdepend upon the shapes themselves. Tolerances for these castshapes are to be specified independently.6. Detail Requirements6.1 The following applies to all specified limits in thisspecific
17、ation: For purposes of determining conformance withthis specification an observed value or a calculated value shallbe rounded to the nearest 1 MPa (100 psi) for tensile strength,and for all other properties shall be rounded to the nearest unitin the last righthand place of figures used in expressing
18、 thelimiting value, in accordance with the rounding method ofPractice E29.6.2 The physical and optical properties in this specificationare based on Finish 1 material unless otherwise specified.6.3 Rods, tubes, and shapes shall conform to the detailrequirements prescribed in Table 1 and, in addition,
19、 shall be soprepared as to conform to the following properties:6.3.1 Bubbles or inclusions in cast rods, tubes, and shapesshall not exceed 3.96 mm (0.156 in.) in any dimension. Nomore than three such defects are permissible in any standardlength greater than 122 cm (48 in.), or an outside diametergr
20、eater than 76.2 mm (3 in.). Bubbles or inclusions are notpermitted in rods, tubes, or shapes less than 122 cm (48 in.) inlength and less than 76.2 mm (3 in.) in outside diameter.Defects less than 1 mm (0.039 in.) shall be disregarded, unlessgrouped to form an objectionable pattern.7. Number of Tests
21、7.1 The number of tests shall be consistent with the require-ments of Sections 8 and 10.8. Sampling and Specimen Preparation8.1 Sampling shall be statistically adequate to satisfy therequirements of Section 10.8.2 In the case of rods, tubes, or special shapes from whichthe required test specimens ca
22、nnot be cut, the test specimensshall be prepared specially from the same raw materials andunder conditions simulating the manufacture of the special sizeor shape. Otherwise a unit of the manufactured product shall beused for testing.TABLE 1 Detail Requirements for Cast Methacrylate Rods,Tubes, and S
23、hapesType UVA Type UVTIndex of refraction, nD, 23Cmin: 1.48 1.48max: 1.50 1.50Specific gravity, 23/23C (73.4/73.4F)min: 1.18 1.18max: 1.20 1.20Spectral transmittance, %, max270 nm: 5 .280 nm: 5 .290 nm: 5 .310 nm: 5 .340 nm: 5 .Luminous transmittance, %, minup to 4.7 mm (0.187 in.) thickness: 91 912
24、5.4 mm (1.00 in.) thickness: 89 89greater than 25.4 mm (1.00 in.) thickness: 87 87Haze, %, max 3.0 3.0Deflection temperature under load at 1820kPa (264 psi), C (F) min.12.0 mm (0.472 in.)24.0 mm (0.944 in.) 88 (190.4) 88 (190.4)24.0 mm (0.944 in.)100 mm (3.937 in.) 93 (199.4) 93 (199.4)Water absorpt
25、ion at 23CGain in weight, 3.2 mm (0.125 in.) thick, %,max0.8 0.8Tensile strength at 23C (73.4F), min, MPa(psi)55 (8000) 55 (8000)Elongation at break, %, min 2 2TABLE 2 Sizes and Permissible Tolerances for Wall Thickness ofCast TubeNominal Wall Thickness,mm (in.)Permissible Wall Thickness Tolerances,
26、6, mm (in.)Type A Type Bup to 4.7 (0.187) 0.5 (0.020) not applicableup to 6.4 (0.250) 0.6 (0.025) 1.1 (0.045)up to 9.5 (0.375) 0.9 (0.035) 1.4 (0.055)up to 12.7 (0.550) 1.1 (0.045) 1.5 (0.060)up to 19.0 (0.750) 1.5 (0.060) 2.3 (0.090)up to 25.4 (1.00) 3.8 (0.150) not applicablegreater than 25.4 (1.0
27、0) 6.4 (0.250) not applicableTABLE 3 Sizes and Permissible Tolerances for Outside Diameterof Cast TubesNominal OutsideDiameter,mm (in.)Outside DiameterTolerances,6, mm (in.)Difference BetweenMaximum and MinimumOutside Diameter (OneTube), Not to Exceed,mm (in.)up to 76.2 (3.0) 0.5 (0.020) 0.6 (0.025)
28、up to 98.4 (3.875) 0.8 (0.030) 1.0 (0.040)up to 152.4 (6.00) 1.1 (0.045) 1.5 (0.060)up to 304.8 (12.00) 1.6 (0.065) 2.0 (0.080)greater than 304.8 (12.00) 3.2 (0.125) not applicableTABLE 4 Sizes and Permissible Length Tolerances for Cut-to-Length Cast Rod and TubeNominal OutsideDiameter,mm (in.)Permi
29、ssible LengthTolerances,6, mm (in.)up to 76 (3.0) 2 (0.079)up to 280 (11.0) 3 (0.118)greater than 280 (11.0) 6 (0.236)TABLE 5 Size and Permissible Tolerances for Diameter of CastRodsSize, Diameter, mm (in.)Diameter Tolerances,6, mm (in.)up to 9.5 (0.375) 0.1 (0.005)up to 25.4 (1.00) 0.2 (0.010)up to
30、 50.8 (2.00) 0.4 (0.015)up to 76.2 (3.00) 0.8 (0.030)up to 152.4 (6.00) 1.1 (0.045)up to 304.8 (12.00) 1.5 (0.060)greater than 304.8 (12.00) 2.5 (0.100)D 5436 03 (2008)28.3 A batch or lot shall be constituted as a unit of manufac-ture as prepared for shipment, and may consist of product fromtwo or m
31、ore production runs.9. Test Methods9.1 The properties enumerated in this specification shall bedetermined in accordance with the following test methods:9.1.1 Test ConditionsConduct the tests in the standardlaboratory atmosphere of 23 6 1.0C (73.4 6 1.8F) and 50 62 % relative humidity, unless otherwi
32、se specified in the testmethods or in this specification.9.1.2 Index of RefractionTest in accordance with TestMethods D 542, using one of the exposed surfaces of the testspecimen that has been given any necessary polish withoutgross removal of material.9.1.3 Specific GravityTest in accordance with M
33、ethod Aof Test Methods D 792.9.1.4 Water AbsorptionTest in accordance with TestMethod D 570, using the 24-h immersion procedure. Beforetesting and following immersion, condition the test specimensfor24hat506 3C (112 6 5F) in accordance with ProcedureB of Test Methods D 618.9.1.5 Defection Temperatur
34、e Under Flexural LoadTest inaccordance with Test Method D 648. Any square, rectangular,or cylindrical test specimen may be used, but calculate the testload used on the basis of a center-loaded beam in which theouter fiber stress produced is 1820 kPa (264 psi). Stack andbind together pieces of thin s
35、heet, 12.7 mm (0.500 in.) inwidth, to form a test specimen approximately 12.7 by 12.7 mm(0.500 by 0.500 in.). Load the specimen parallel to the facescontaining the original surfaces of the material. Specimens12.7 by 12.7 mm (0.500 by 0.500 in.) machined from the faceof thick material shall be loaded
36、 parallel to the face containingthe original surface.9.1.6 Tensile Strength and Elongation at BreakTest inaccordance with Test Method D 638 using Type I or Type IIspecimens at a cross-head speed of 5 mm/min (0.2 in./min).9.1.7 Spectral TransmittanceMeasure the spectral trans-mittance at each specifi
37、ed wavelength with a suitable spectro-photometer.9.1.8 Light TransmittanceTest in accordance with TestMethod D 1003.9.1.9 HazeTest in accordance with Test Method D 1003.10. Certification and Inspection10.1 When specified in the purchase order or contract, thepurchaser shall be furnished certificatio
38、n that samples repre-senting each lot have been either tested or inspected as directedin this specification and the requirements have been met. Whenspecified in the purchase order or contract, a report of the testresults shall be furnished.10.2 Lot-acceptance inspection shall be the basis on whichac
39、ceptance or rejection of the lot is made. The lot-acceptanceinspection shall consist of (1) thickness and dimensions, (2)appearance, and (3) deflection temperature.10.3 Periodic check inspection shall consist of the testsspecified for all requirements of the material under thisspecification. Supplie
40、r shall determine and use an inspectionfrequency which shall be adequate to ensure that the materialis certifiable in accordance with 10.4.10.4 Certification shall be that the material was manufac-tured, sampled, tested, and inspected in accordance with thisspecification and that average values meet
41、 the requirements ata confidence level of 95 %.10.5 Any report made in accordance with 10.1 shall consistof the results of the lot-acceptance inspection of the shipmentand the results of the most recent periodic-check inspection.11. Packaging and Marking11.1 All packing, packaging, and marking provi
42、sions ofPractice D 3892 shall apply to this specification.12. Keywords12.1 acrylic; acrylic plastic; cast acrylic; clear weatherableplastics; plastic; plastic materials; plastic rods; plastic shapes;plastic tubes; PMMA; poly(methyl methacrylate); rods;shapes; transparent; tubesSUMMARY OF CHANGESThis
43、 section identifies the location of selected changes to this specification. For the convenience of the user,Committee D20 has highlighted those changes that may impact the use of this specification. This section mayalso include descriptions of the changes or the reasons for the changes, or both.D 54
44、3603:(1) Revised “Deflection Temperature Under Flexural Load”requirements in Table 1 to be consistent with SpecificationD 4802, Category A-1.(2) Deleted Figure 1 (Deflection Temperature vs. Thickness).D 543699:(1) Revised Note 2.(2) Revised text of Section 10.(3) Added Summary of Changes section.D 5
45、436 03 (2008)3ASTM International takes no position respecting the validity of any patent rights asserted in connection with any item mentionedin this standard. Users of this standard are expressly advised that determination of the validity of any such patent rights, and the riskof infringement of su
46、ch rights, are entirely their own responsibility.This standard is subject to revision at any time by the responsible technical committee and must be reviewed every five years andif not revised, either reapproved or withdrawn. Your comments are invited either for revision of this standard or for addi
47、tional standardsand should be addressed to ASTM International Headquarters. Your comments will receive careful consideration at a meeting of theresponsible technical committee, which you may attend. If you feel that your comments have not received a fair hearing you shouldmake your views known to th
48、e ASTM Committee on Standards, at the address shown below.This standard is copyrighted by ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959,United States. Individual reprints (single or multiple copies) of this standard may be obtained by contacting ASTM at the aboveaddress or at 610-832-9585 (phone), 610-832-9555 (fax), or serviceastm.org (e-mail); or through the ASTM website(www.astm.org).D 5436 03 (2008)4
