1、Designation: C 564 09Endorsed by theCast Iron Soil Pipe InstituteStandard Specification forRubber Gaskets for Cast Iron Soil Pipe and Fittings1This standard is issued under the fixed designation C 564; the number immediately following the designation indicates the year oforiginal adoption or, in the
2、 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. Scope1.1 This s
3、pecification covers preformed rubber gaskets usedto seal joints in cast iron soil pipe and fittings.1.2 The values stated in inch-pound units are to be regardedas standard. The values given in parentheses are mathematicalconversions to SI units that are provided for information onlyand are not consi
4、dered standard.1.3 The following safety hazards caveat pertains only to thetest methods section of this specification: This standard doesnot purport to address all of the safety concerns, if any,associated with its use. It is the responsibility of the user of thisstandard to establish appropriate sa
5、fety and health practicesand determine the applicability of regulatory limitations priorto use.1.4 The committee with jurisdiction over this standard is notaware of another comparable standard for materials covered inthis standard.2. Referenced Documents2.1 ASTM Standards:2A 644 Terminology Relating
6、 to Iron CastingsD 395 Test Methods for Rubber PropertyCompressionSetD 412 Test Methods for Vulcanized Rubber and Thermo-plastic ElastomersTensionD 471 Test Method for Rubber PropertyEffect of LiquidsD 573 Test Method for RubberDeterioration in an AirOvenD 624 Test Method for Tear Strength of Conven
7、tionalVulcanized Rubber and Thermoplastic ElastomersD 1149 Test Methods for Rubber DeteriorationCrackingin an Ozone Controlled EnvironmentD 1415 Test Method for Rubber PropertyInternationalHardnessD 2240 Test Method for Rubber PropertyDurometerHardness2.2 Other DocumentsRMA Class 3 Dimensional Toler
8、ances, RMA Manual33. Terminology3.1 DefinitionsFor definitions of terms in this standard seeTerminology C 717.3.2 Definitions of Terms Specific to This Standard:3.2.1 flashthe excess material protruding from the surfaceof a molded article at the mold junction.3.2.2 virgin rubber, na term that may be
9、 used inter-changeably with raw rubber (raw thermoset elastomer). Arubber or thermoset elastomer that has not had any additionalwork, diluents incorporated, processes performed on it, or anycombination thereof. A rubber that is in an unmodified state orone in which no attempt has been made to alter
10、it in any fashionas received from the manufacturer or supplier.3.2.3 manufacturer, nthe entity that molds the gasketscovered by this standard.4. Materials and Manufacture4.1 Gaskets shall be made of a properly vulcanized virgincompound containing virgin rubber as the sole elastomer withno scrap or r
11、eclaim.5. Physical Requirements Physical Requirements5.1 Sample gaskets selected as specified in Section 8 shallconform to the requirements for physical properties listed inTable 1 when tested in accordance with the methods specifiedin Section 9.6. Dimensions and Permissible Variations6.1 Gaskets sh
12、all conform to the dimensions specified bythe manufacturer.1This specification is under the jurisdiction of ASTM Committee A04 on IronCastings and is the direct responsibility of Subcommittee A04.75 on Gaskets andCoupling for Plumbing and Sewer Piping.Current edition approved Sept. 1, 2009. Publishe
13、d October 2009. Originallyapproved in 1965. Last previous edition approved in 2008 as C 564 08.2For 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 Documen
14、t Summary page onthe ASTM website.3Rubber Manufacturers Association, 1400 K Street NW, No. 900, Washington,DC 20005 2455, http:/www.rma.org.1Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.6.2 All cross-sectional dimensions shall have
15、 an RMAClass3 tolerance as shown in Annex A1, and all diametral dimen-sions shall have a tolerance of 6 1 percent.7. Workmanship7.1 The surface of the gasket shall be smooth and free ofpitting, cracks, blisters, air marks, and any other imperfectionsthat will affect its behavior in service. The body
16、 of the gasketshall be free of porosity and air pockets.7.2 Neither the flash thickness nor the flash extension shallexceed132 in. (0.8 mm), at any point on the sealing ring.7.3 The offset, or failure of the mold to register accurately,shall not exceed164 in. (0.4 mm).8. Sampling8.1 For each of the
17、tests, gaskets shall be selected at randomand tests be performed by the method and frequency of thetests as specified in Section 9.9. Test Methods9.1 HardnessThe gasket material shall be tested forhardness in accordance with ASTM Test Method D 2240. TestMethod D 1415 shall be used as the referee met
18、hod. Hardnessmeasurements shall be made on specimens prepared in accor-dance with 9.2. However, hardness readings for guidancepurposes shall be permitted to be taken directly on the gasket,recognizing that these readings may vary slightly from thosetaken on the dumb-bell specimens. Tests shall be pe
19、rformedduring the day of production not to exceed a 24-h period foreach size and type gasket produced during that period.9.2 Elongation and Tensile StrengthThe gasket materialshall be tested for elongation and tensile strength in accordancewith Test Methods D 412. Standard ASTM Type C dumb-bellspeci
20、mens conforming to Fig. 1 (Apparatus for Tensile SetTest) of Test Methods D 412 shall be cut from a section of thegasket for this test. To obtain a uniform thickness, these gasketsections shall be permitted to be buffed prior to cutting intodumb-bell specimens, so as to produce a finely ground surfa
21、cewithout cuts or burns. Tests shall be performed during the dayof production not to exceed a 24-h period for each size and typegasket produced during that period.9.3 Tear Strength The gasket material shall be tested fortear strength in accordance with Test Method D 624 using DieC. Tests shall be pe
22、rformed during the day of production not toexceed a 24-h period for each size and type gasket producedduring that period.9.4 Compression Set The gasket material shall be testedfor compression set in accordance with Test Methods D 395using Method B. Specimens shall be aged in an oven for 22 hat 158 6
23、 2F (70 6 1C). Where plied specimens arenecessary, the results shall comply with the requirements ofTable 1. Tests shall be performed during the day of productionnot to exceed a 24-h period for each size and type gasketproduced during that period.9.5 Heat AgingThe gasket material shall be tested for
24、effects of heat aging in accordance with 9.2, and shall be agedfor 96 h at 158 6 2F (70 6 1C). Hardness measurementsshall be made as specified in 9.1. Test shall be performedannually or when a formulation change has occurred, or asource of supply has changed, whichever is the shorter period.9.6 Wate
25、r AbsorptionThe gasket material shall be testedfor weight increase due to water absorption in accordance withTest Method D 471. If a 1-in. (25.4-mm) specimen cannot becut from the sample gasket, the greatest width obtainable shallbe used. The test specimen shall be immersed in distilled waterat 158
26、6 2F (70 6 1C) for 7 days. Test shall be performedannually or when a formulation change has occurred, or asource of supply has changed, whichever is the shorter period.9.7 Ozone ResistanceThe gasket material shall be testedfor ozone resistance in accordance with Test Method D 1149,using specimens an
27、d procedure specified under Method B. Theozone concentration shall be 150 parts/100 000 000 of air byvolume. Specimens shall be aged 100 6 1h at 104 6 2F (406 1C). A two-power hand magnifying glass shall be used toexamine the gasket for cracks. Test shall be performed annuallyor when a formulation c
28、hange has occurred, or a source ofsupply has changed, whichever is the shorter period.9.8 Oil Immersion The gasket material shall be tested forvolume decrease due to oil absorption in accordance with TestMethod D 471. If a 1-in. (25.4 mm) specimen cannot be cutfrom the sample gasket, the greatest wi
29、dth obtainable shall beused. The test specimen shall be immersed in IRM 903 for 70TABLE 1 Physical Requirements of GasketsProperty Requirements ASTM Test MethodHardness (nominal durometer 65) as specified by thepipe manufacturer50 60 70 D 2240Elongation, min, % 350 300 250 D 412Tensile strength, min
30、, psi 1500 1500 1500 D 412(MPa) (10) (10) (10)Tear strength, min, lbf/in. 150 150 150(N/cm) (268) (268) (268) D 624Compression set, max, % 25 25 25 D 395Heat aging, 96 h at 158 6 2F (70 6 1C): D 573Hardness increase, max, durometer points 10 10 10 .Loss in tensile strength, max,% 15 15 15 .Loss in e
31、longation, max, % 20 20 20 .Water absorption: D 471Weight increase, max, % 20 20 20 .Ozone resistance no cracks no cracks no cracks D 1149Oil immersion:Volume increase, max, % 80 80 80 D 471C5640926 0.7 h at 212 6 2F (100 6 1C). Test shall be performedannually or when a formulation change has occurr
32、ed, or asource of supply has changed, whichever is the shorter period.10. Certification10.1 Upon request, the purchaser, design professional, orthe administrative authority having jurisdiction where theproducts are being installed shall be furnished certification, bythe manufacturer, stating samples
33、 representing each lot havebeen tested and inspected as indicated in this specification andthe requirements have been met. If requested by the purchaser,design professional, or the administrative authority havingjurisdiction where the products are being installed, certificationshall be accompanied b
34、y test reports as prepared in accordancewith the Sections 4-9 of this specification. Certification shallinclude the legal name and address of the manufacturer.10.2 Third Party certifiers or inspectors shall utilize theprocedures detailed in Annex A1 when conducting inspectionsat the manufacturing lo
35、cations.11. Marking11.1 Mark each gasket with clearly legible letters notexceeding14 in. (6.35 mm) in height. These markings shallinclude the gasket manufacturers name or symbol, the pipesize and class (such as NH for no hub, SV for service, XH forextra heavy), country of origin and the ASTM specifi
36、cationdesignation. Rubber Compression gaskets shall be required tohave the year of manufacture in addition to the other requiredmarkings of this section.12. Keywords12.1 cast iron; fittings; gaskets; pipe; rubberANNEXES(Mandatory Information)A1. RUBBER MANUFACTURERS ASSOCIATION, INC. TOLERANCESSee T
37、able A1.1.The following supplementary requirements shall be applied when the manufacturer or seller of the products covered bythis specification utilizes third party certification agencies as part of their certification as detailed in Section 10 of thisspecification.A2. THIRD PARTY CERTIFICATION OR
38、INSPECTIONA2.1 Third Party certifiers or inspectors conducting regularinspections at the manufacturers production facility shallinclude but not be limited to the following during eachinspection.A2.1.1 A review of the manufacturers records to verifycompliance with Sections 4-9 of this standard. Copie
39、s of themanufacturers test reports shall be added to the third partycertifiers inspection report.A2.1.2 Random inspections of the manufacturers finishedgoods inventory shall be conducted during each inspection.These inspections shall include a dimensional and markinginspection of not less than 10 ra
40、ndomly selected gaskets ofdifferent sizes and types during inspection. Each gasket used aspart of a coupling shall be subject to the requirements of theapplicable coupling standard.TABLE A1.1 RMA Class 3 Dimensional Tolerances (Commercial Tolerances)Size, in. (mm) FixedAClosureB,C0 to 0.499 (0 to 12
41、.67) 60.010 (60.254) 60.015 (60.381)0.500 to 0.999 (12.7 to 25.37) 60.010 (60.254) 60.018 (60.457)1.000 to 1.999 (24.4 to 50.77) 60.015 (60.381) 60.020 (60.508)2.000 to 2.999 (50.8 to 76.17) 60.020 (60.508) 60.025 (60.635)3.000 to 3.999 (76.2 to 101.57) 60.025 (60.635) 60.030 (60.762)4.000 to 4.999
42、(101.6 to 126.97) 60.030 (60.762) 60.035 (60.889)5.000 to 7.999 (127.0 to 203.17) 60.035 (60.889) 60.050 (61.27)Greater than 8.000 (Greater than 203.2) multiply by 0.0050 (1.27)AFixed dimensions are those that are parallel to the mold parting line or major mold sections and that are not affected by
43、flash thickness variations. Tolerances applyindividually to each fixed dimension according to its own size.BClosure dimensions are those vertical to the mold parting line or parting lines of major sections and are affected by flash thickness variation.CThe tolerance on closure dimensions is that tol
44、erance for the largest closure dimension. This tolerance is then applied to all other closure dimensions.C564093ASTM 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 advis
45、ed 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 time by the responsible technical committee and must be reviewed every five years andif not revised, either r
46、eapproved 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 receive careful consideration at a meeting of theresponsible technical committee, which you may attend. If
47、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 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).C564094
