1、Designation: C564 11Endorsed by theCast Iron Soil Pipe InstituteStandard Specification forRubber Gaskets for Cast Iron Soil Pipe and Fittings1This standard is issued under the fixed designation C564; the number immediately following the designation indicates the year oforiginal adoption or, in the c
2、ase 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 spe
3、cification covers preformed rubber gaskets usedto seal joints in cast iron soil pipe and fittings.1.2 The committee with jurisdiction over this standard is notaware of another comparable standard for materials covered inthis standard.1.3 The values stated in inch-pound units are to be regardedas sta
4、ndard. The values given in parentheses are mathematicalconversions to SI units that are provided for information onlyand are not considered standard.1.4 The following safety hazards caveat pertains only to thetest methods section of this specification: This standard doesnot purport to address all of
5、 the safety concerns, if any,associated with its use. It is the responsibility of the user of thisstandard to establish appropriate safety and health practicesand determine the applicability of regulatory limitations priorto use.2. Referenced Documents2.1 ASTM Standards:2A644 Terminology Relating to
6、 Iron CastingsC1277 Specification for Shielded Couplings Joining Hub-less Cast Iron Soil Pipe and FittingsD395 Test Methods for Rubber PropertyCompression SetD412 Test Methods for Vulcanized Rubber and Thermo-plastic ElastomersTensionD471 Test Method for Rubber PropertyEffect of LiquidsD573 Test Met
7、hod for RubberDeterioration in an AirOvenD624 Test Method for Tear Strength of Conventional Vul-canized Rubber and Thermoplastic ElastomersD1149 Test Methods for Rubber DeteriorationCrackingin an Ozone Controlled EnvironmentD1415 Test Method for Rubber PropertyInternationalHardnessD2240 Test Method
8、for Rubber PropertyDurometerHardnessD3677 Test Methods for RubberIdentification by InfraredSpectrophotometry2.2 Other DocumentsRMA Class 3 Dimensional Tolerances, RMA Manual3CISPI 310 Specification for couplings for use in connectionwith hubless cast iron soil pipe and fittings for sanitaryand storm
9、 drain, waste, and vent piping applications43. Terminology3.1 DefinitionsFor definitions of terms in this standard seeTerminology A644.3.2 Definitions of Terms Specific to This Standard:3.2.1 flash, nthe excess material protruding from thesurface of a molded article at the mold junction.3.2.2 manufa
10、cturer, nthe entity that molds the gasketscovered by this standard.3.2.3 virgin rubber, na term that may be 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 anycom
11、bination thereof. A rubber that is in an unmodified state orone in which no attempt has been made to alter it in any fashionas received from the manufacturer or supplier.4. Materials and Manufacture4.1 Gaskets shall be made of a properly vulcanized virgincompound containing virgin rubber as the sole
12、 elastomer withno scrap or reclaim.4.2 Gaskets manufactured for use in couplings complyingwith Specification C1277 or CISPI 310 shall be manufacturedfrom a properly vulcanized virgin compound in which theprimary elastomer is polychloroprene (neoprene). The gasketsshall be tested in accordance with T
13、est Methods D3677.1This 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 June 1, 2011. Published July 2011. Originally approvedin 1965. L
14、ast previous edition approved in 2009 as C564 09a. DOI: 10.1520/C0564-11.2For 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 A
15、STM website.3Available from Association for Rubber Products Manufacturers (ARPM), 7321Shadeland Station Way, Suite 285, Indianapolis, IN 46256, http:/www.arpminc.org.4Available from Cast Iron Soil Pipe Institute (CISPI), http:/www.cispi.org.1Copyright ASTM International, 100 Barr Harbor Drive, PO Bo
16、x C700, West Conshohocken, PA 19428-2959, United States.5. 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 Permissib
17、le Variations6.1 Gaskets shall conform to the dimensions specified bythe manufacturer.6.2 All cross-sectional dimensions shall have 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 sm
18、ooth and free ofpitting, cracks, blisters, air marks, and any other imperfectionsthat will affect its behavior in service. The body 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
19、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 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
20、material shall be tested forhardness in accordance with ASTM Test Method D2240. TestMethod D1415 shall be used as the referee method. Hardnessmeasurements shall be made on specimens prepared in accor-dance with 9.2. However, hardness readings for guidancepurposes shall be permitted to be taken direc
21、tly on the gasket,recognizing that these readings may vary slightly from thosetaken on the dumb-bell specimens. Tests shall be performedduring 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 mate
22、rialshall be tested for elongation and tensile strength in accordancewith Test Methods D412. Standard ASTM Type C dumb-bellspecimens conforming to Fig. 1 (Apparatus for Tensile SetTest) of Test Methods D412 shall be cut from a section of thegasket for this test. To obtain a uniform thickness, these
23、gasketsections shall be permitted to be buffed prior to cutting intodumb-bell specimens, so as to produce a finely ground surfacewithout 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 S
24、trength The gasket material shall be tested fortear strength in accordance with Test Method D624 using DieC. Tests shall be performed 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 test
25、edfor compression set in accordance with Test Methods D395using Method B. Specimens shall be aged in an oven for 22 hat 158 6 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
26、 a 24-h period for each size and type gasketproduced during that period.9.4.1 When testing hubless pipe gaskets, the specimensshall be 1-in. disks cut from prepared samples .075 to .090-in.thick and not to exceed seven (7) plies. The thickness of thedisk shall be measured in accordance with Test Met
27、hods D395,section 13.1. Since all specimens from hubless pipe gaskets arecurved, not flat, it is important to measure the thickness in thecenter of the disk with the specimen laying in a concavemanner. Measure the thickness of each ply and add themeasured thickness of each ply (not to exceed seven p
28、lies) todetermine the original plied up thickness (to). The plied uptarget thickness should be approximately .50 in. Take theoriginal plied up thickness (to) and multiply it by .75 todetermine the thickness of the spacer bar to be used (tn).Assemble the plied up specimens in the test fixture (TestMe
29、thods D395, Fig. 3) with the proper thickness spacer barsTABLE 1 Physical Requirements of GasketsProperty Requirements ASTM Test MethodABCHardness (nominal durometer 65) as specified by thepipe manufacturer50 60 70 D2240Elongation, min, % 350 300 250 D412Tensile strength, min, psi 1500 1500 1500 D41
30、2(MPa) (10) (10) (10)Tear strength, min, lbf/in. 150 150 150(N/cm) (268) (268) (268) D624Compression set, max, % 25 25 25 D395Heat aging, 96 h at 158 6 2F (70 6 1C): D573Hardness increase, max, durometer points 10 10 10 .Loss in tensile strength, max,% 15 15 15 .Loss in elongation, max, % 20 20 20 .
31、Water absorption: D471Weight increase, max, % 20 20 20 .Ozone resistance no cracks no cracks no cracksAD1149Oil immersion:Volume increase, max, % 80 80 80 D471ANoteOzone Resistance on 70 hardness Hubless Pipe Gaskets shall be tested at 1/1,000,000 (1PPM).C564 112and place in oven for 22 h at 158 +/-
32、 2F (70 +/- 1C). At theend of the test period take the device from the oven and removethe test specimens immediately and allow to cool in accordancewith Test Methods D395, section 13.4.After the cooling periodmeasure the final thickness at the center of the plied up testspecimen placed in a concave
33、position on the dial micrometerto determine the final thickness (ti). Calculate the compressionset expressed as a percentage of the original deflection asfollows:CB = (to-ti)/(to-tn) 3 100CB = compression set value test method Bto = original plied up thicknessti = final plied up thicknesstn = thickn
34、ess of spacer bar used9.5 Heat AgingThe gasket material shall be tested foreffects 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,
35、 or asource of supply has changed, whichever is the shorter period.9.6 Water AbsorptionThe gasket material shall be testedfor weight increase due to water absorption in accordance withTest Method D471. If a 1-in. (25.4-mm) specimen cannot becut from the sample gasket, the greatest width obtainable s
36、hallbe used. The test specimen shall be immersed in distilled waterat 158 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
37、 ozone resistance in accordance with Test Method D1149,using specimens and 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 g
38、asket for cracks. Test shall be performed annuallyor when a formulation change has occurred, or a source ofsupply has changed, whichever is the shorter period.9.7.1 When testing gaskets used in hubless pipe couplings,the ozone concentration shall be 100/100 000 000 (1PPM) ofair by volume.9.8 Oil Imm
39、ersion The gasket material shall be tested forvolume decrease due to oil absorption in accordance with TestMethod D471. If a 1-in. (25.4 mm) specimen cannot be cutfrom the sample gasket, the greatest width obtainable shall beused. The test specimen shall be immersed in IRM 903 for 706 0.7 h at 212 6
40、 2F (100 6 1C). Test shall be performedannually or when a formulation change has occurred, 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 ar
41、e being installed shall be furnished certification, bythe manufacturer, stating samples 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 havingj
42、urisdiction where the products are being installed, certificationshall be accompanied by 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 utiliz
43、e theprocedures detailed in Annex A1 when conducting inspectionsat the manufacturing locations.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
44、 for no hub, SV for service, XH forextra heavy), country of origin and the ASTM specificationdesignation. 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; rubberA
45、NNEXES(Mandatory Information)A1. RUBBER MANUFACTURERS ASSOCIATION, INC. TOLERANCESSee Table A1.1.C564 113The 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
46、 certification as detailed in Section 10 of thisspecification.A2. THIRD PARTY CERTIFICATION OR 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 re
47、view of the manufacturers records to verifycompliance with Sections 4-9 of this standard. Copies 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 inspec
48、tion.These inspections shall include a dimensional and markinginspection of not less than 10 randomly 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.ASTM International takes
49、 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 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 reapproved or withdrawn. Your comments are invited either for revision of thi
