ASTM C509-2006(2011) Standard Specification for Elastomeric Cellular Preformed Gasket and Sealing Material《多孔弹性预成型垫片和密封材料标准规范》.pdf

1、Designation: C509 06 (Reapproved 2011)Standard Specification forElastomeric Cellular Preformed Gasket and SealingMaterial1This standard is issued under the fixed designation C509; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the

2、 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. Scope1.1 This specification applies t

3、o those elastomeric cellularmaterials of a firm grade that are manufactured in preformedshapes for use as gaskets and for use as sealing materials, in theform of compression seals or gaskets, or both, for glazing otherbuilding joint applications.NOTE 1For softer cellular elastomeric materials used i

4、n secondarysealing applications, refer to Specification D1056.1.2 Test Method C1166, as referenced in this specification,should be used to measure and describe the properties ofmaterials, products, or assemblies in response to heat andflame under controlled laboratory conditions and should not beuse

5、d to describe or appraise the fire hazard or fire risk ofmaterials, products, or assemblies under actual fire conditions.However, results of this test may be used as elements of a firerisk assessment which takes into account all of the factorswhich are pertinent to an assessment of the fire hazard o

6、f aparticular end use.1.3 The following precautionary caveat pertains only to thetest method portion, Section 11, 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 the userof this standard to establ

7、ish appropriate safety and healthpractices and determine the applicability of regulatory limita-tions prior to use.1.4 The committee with jurisdiction over this standard is notaware of any comparable standards published by other orga-nizations.2. Referenced Documents2.1 ASTM Standards:2C717 Terminol

8、ogy of Building Seals and SealantsC1083 Test Method for Water Absorption of Cellular Elas-tomeric Gaskets and Sealing MaterialsC1166 Test Method for Flame Propagation of Dense andCellular Elastomeric Gaskets and AccessoriesD395 Test Methods for Rubber PropertyCompression SetD412 Test Methods for Vul

9、canized Rubber and Thermo-plastic ElastomersTensionD746 Test Method for Brittleness Temperature of Plasticsand Elastomers by ImpactD865 Test Method for RubberDeterioration by Heating inAir (Test Tube Enclosure)D925 Test Methods for Rubber PropertyStaining of Sur-faces (Contact, Migration, and Diffus

10、ion)D1056 Specification for Flexible Cellular MaterialsSponge or Expanded RubberD1149 Test Methods for Rubber DeteriorationCrackingin an Ozone Controlled Environment3. Terminology3.1 DefinitionsRefer to Terminology C717 for the follow-ing terms used in this specification: cellular material, elasto-m

11、eric, gasket glazing, seal, and sealing material.4. Materials and Manufacture4.1 Elastomeric cellular materials furnished to this specifi-cation shall be manufactured from natural rubber, syntheticrubber, rubber-like materials, or mixtures of these, with addedcompounding ingredients of such nature a

12、nd quality that, withproper curing, the finished product will comply with thisspecification.4.2 The cured compounds shall be suitable for use whereresistance to sunlight, weathering, oxidation, and permanentdeformation under load are of prime importance.4.3 The manufacturing process shall be such to

13、 ensure ahomogeneous cellular material free of defects that may affectserviceability.4.4 Although under this specification the manufacturer ispermitted to choose constituent materials, there is no implica-tion that the several compounds are equivalent in all physicalproperties.Any special characteri

14、stics other than those requiredby this specification, which may be needed for specific1This specification is under the jurisdiction of ASTM Committee C24 onBuilding Seals and Sealants and is the direct responsibility of Subcommittee C24.73on Compression Seal and Lock Strip Gaskets.Current edition ap

15、proved June 1, 2011. Published August 2011. Originallyapproved in 1963. Last previous edition approved in 2006 as C509 06. DOI:10.1520/C0509-06R11.2For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service at serviceastm.org. For Annual Book of ASTMStandard

16、s volume information, refer to the standards Document Summary page onthe ASTM website.1Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.applications, shall be specified by the purchaser, since suchcharacteristics may influence the choi

17、ce of base materials andother ingredients.5. Physical Properties5.1 The material shall conform to the requirements pre-scribed in Table 1.6. Dimensional Tolerances6.1 Permissible variation in cross-sectional dimensions shallbe as specified in Table 2 unless otherwise agreed uponbetween the purchaser

18、 and the supplier.7. Workmanship, Finish, and Appearance7.1 The elastomeric cellular materials shall be manufacturedand processed in a careful and workmanlike manner inaccordance with the best commercial practices.7.2 The surfaces of the finished material shall be reasonablysmooth and free of excess

19、ive talc or bloom.7.3 Unless otherwise specified, the material shall be black.When colored material is desired, it is recommended that othertests, agreed upon between the purchaser and the supplier, beconducted to ensure color stability.8. Number of Tests and Retests8.1 Any material that fails in on

20、e or more of the testrequirements may be retested by making two additional testsfor the requirements in which failure occurs. Failure in onesuch retest shall be cause for final rejection.8.2 Rejected material shall be disposed of as directed by thesupplier.9. Significance and Use9.1 Flame Propagatio

21、n:9.1.1 This specification has two options:9.1.1.1 Option IFlame propagation test is required.9.1.1.2 Option IIFlame propagation test is not required.9.1.2 In case no option is specified, Option I will apply.9.2 This specification has two classifications as related toozone resistance. These are Type

22、 I and Type II, with the latterhaving the greater resistance to ozone. The type should bespecified when making reference to this specification but in theevent that the type is not specified, Type II shall apply.NOTE 2Type II is included in this specification for use where greaterozone resistance is

23、required.10. Sampling10.1 When possible, the completed manufactured productof a suitable section thereof shall be used for the tests specified.Representative samples of the lot being examined shall beselected at random as required.10.2 When the finished product does not lend itself totesting or to t

24、he taking of test specimens because of compli-cated shape, small size, metal or fabric inserts, or other reasons,standard test strips shall be prepared. The standard extrudedspecimens for testing, except where a specific specimen size isdefined by a particular test method, shall be 6.4 mm (14 in.)th

25、ick by 31.8 mm (114 in.) wide in rectangular cross section.The test pieces for flame propagation tests shall be as specifiedTABLE 1 Physical Requirements of Cellular Elastomeric MaterialsProperty Limit ASTM Test MethodACompression-deflection, 25 % deflection limits:kPa (psi) 91 to 168 (13 to 24) D10

26、56Compression set, 22 h 70C (158F) max, % 30 D395, Method BHeat agingB, 70 h 100C (212F), change in compression-deflection values:kPa (psi) 0to+70(0to+10) D865 and D1056Dimensional stability, change, max %, after heat aging, 70 h 100C (212F) 4 11.4Ozone resistanceCat 40 % elongation, 100 h 40C (104F

27、):Type I 100 mPa ozone no cracks 73magnificationD1149Type II 300 mPa ozone no cracks 73magnificationD1149Low-temperature brittleness 40C (40F) pass see Appendix X1Water absorption, max, % weight 5.0 C1083Flame propagation:Option IOption II101.6 mm (4 in.) maxno limitC1166NonstainingDno migratory sta

28、in D925ASee Section 11.BAfter heat aging, surfaces of the specimen shall be neither hard nor brittle.A152.4-mm (6-in.) length of the finished extrusion shall exhibit no surface cracks when benton itself 180.CThe specimen shall exhibit no surface cracks when in the extended condition.DThis requiremen

29、t may be waived, subject to agreement between the purchaser and the supplier.TABLE 2 Standards for Cross-Sectional ToleranceNOTE 1Dimensional tolerances for outside diameters, inside diam-eters, wall thickness, width, height, and general cross-sectional dimen-sions of extrusionsRubber Manufacturers

30、AssociationARMA Class 1 RMA Class 1Drawing Designation BEC 1 Drawing Designation BEC 1Dimensions (in inches) Dimensions (in Millimeters)Above Up To Above Up To0 0.25 60.016 0 6.4 60.40.25 0.50 0.025 6.4 12.7 0.630.50 1.00 0.050 12.7 25.4 1.251.00 1.60 0.080 25.4 40.6 2.01.60 compression; elastomer;

31、elastomeric; gasket;glazing; preformed; seal; sealingAPPENDIX(Nonmandatory Information)X1. TEST METHOD FOR LOW-TEMPERATURE BRITTLENESS OF RUBBER AND RUBBER-LIKE MATERIALS3X1.1 ScopeX1.1.1 This test method is intended to determine the abilityof compounds made from rubber or rubber-like materials tore

32、sist the effect of low temperatures that may cause them tobecome brittle and fracture or crack when bent. Standardspecimens are exposed to specified low temperatures fordefinite periods after which the specimens are bent in aprescribed manner and any fracture or cracking noted. Theprocedure is commo

33、nly called the “Thiokol” method.NOTE X1.1Results obtained by this test method are influenced by therate of flexing of the cooled specimens which can not be closely controlledin the prescribed apparatus. They are therefore of a qualitative nature andmay not be closely reproducible over a range of sev

34、eral degrees oftemperature depending on the speed of flexure. For more accuratedetermination of brittle temperature, and particularly in new specifica-tions, Test Method D746 is recommended.X1.2 ApparatusX1.2.1 Cold Chamber, of sufficient size to contain theflexing fixture when loaded with specimens

35、, and so arranged asto permit the operation of the fixture to bend to specimenswithout removal from the chamber. It shall be capable ofmaintaining within it a uniform atmosphere of cold, dry air or3This test method was originally issued in 1943 under the designation D736which was discontinued in Apr

36、il 1967.C509 06 (2011)3a mixture of air and carbon dioxide at specified temperatureswithin a tolerance of 61C (2F).NOTE X1.2Temperatures of 40C (40F) and 55C (67F) arecommonly used.X1.2.2 Flexing Fixture, consisting of two parallel plateseach having a width of at least 50.8 mm (2 in.) so supported i

37、nguides that they may be rapidly moved from a position 63.5mm (212 in.) apart until they are separated by a distance of 25.4mm (1 in.). Suitable clamping bars or devices shall be providedfor holding the ends of the specimens for a distance of 6.4 mm(14 in.) at the corresponding edge of each plate so

38、 that whenmounted, the specimens form similar bent loops between theplates. A satisfactory flexing fixture is shown in Fig. X1.1.X1.3 Test SpecimensX1.3.1 The test specimens shall conform in shape to Die Cas specified in Test Methods D412 and shall have a thicknessof 2.032 6 0.254 mm (0.080 6 0.010

39、in.).X1.3.2 At least two specimens from each compound shallbe tested.X1.4 ProcedureX1.4.1 Mount the test specimens in loop position betweenthe plates of the flexing fixture with the enlarged ends spacedat least 3.2 mm (18 in.) apart and held in the clamps for adistance of 6.4 mm (14 in.). With the p

40、lates in the open positionseparated 63.5 mm (212 in.), place the fixture containing thespecimens in the cold chamber and expose it for the specifiedperiod to cold, dry air or a mixture of air and carbon dioxide atthe specified temperature. The standard exposure period shallbe5h(Note X1.3). At the te

41、rmination of the exposure periodand while still in the cold chamber, move the plates of theflexing fixture as rapidly as possible from the 63.5-mm(212-in.) distance of separation to a position where they are25.4 mm (1 in.) apart. Then examine the specimens for fractureor visible cracks.NOTE X1.3Prev

42、iously two periods were specified, 96 h for natural-rubber compounds and 5 h for synthetic-rubber compounds. It was foundthat5hisadequate for either class of compounds within the intent of thistest method.X1.5 ResultsX1.5.1 When two specimens are tested and neither onefractures nor shows cracks afte

43、r being tested, the compoundshall be considered as having passed the brittleness test. If bothspecimens crack, the compound shall be considered to havefailed.X1.5.2 If only one specimen fractures or cracks, the result isinconclusive and two additional specimens shall be tested. Ifeither one of these

44、 cracks, the compound shall then beconsidered to have failed.X1.6 ReportX1.6.1 Report the following:X1.6.1.1 The results of the test expressed as “passed” or“failed,”X1.6.1.2 The temperature of the cold chamber,X1.6.1.3 The duration of the exposure period,X1.6.1.4 Identification of the material test

45、ed including de-scription of any special treatment prior to test, andX1.6.1.5 Data of manufacture of the material, if known, anddate of test.FIG. X1.1 Flexing Fixture for Low-Temperature Brittleness TestC509 06 (2011)4ASTM International takes no position respecting the validity of any patent rights

46、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 such rights, are entirely their own responsibility.This standard is subject to revision at any tim

47、e 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 additional standardsand should be addressed to ASTM International Headquarters. Your comments will r

48、eceive 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 the ASTM Committee on Standards, at the address shown below.This standard is copyrighted by ASTM I

49、nternational, 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). Permission rights to photocopy the standard may also be secured from the ASTM website (www.astm.org/COPYRIGHT/).C509 06 (2011)5