1、Designation: C564 12 Endorsed 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
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 sp
3、ecification 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 st
4、andard. 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 o
5、f 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 t
6、o Iron CastingsC1277 Specification for Shielded Couplings Joining HublessCast Iron Soil Pipe and FittingsD395 Test Methods for Rubber PropertyCompression SetD412 Test Methods for Vulcanized Rubber and Thermoplas-tic ElastomersTensionD471 Test Method for Rubber PropertyEffect of LiquidsD573 Test Meth
7、od for RubberDeterioration in an AirOvenD624 Test Method for Tear Strength of Conventional Vul-canized Rubber and Thermoplastic ElastomersD1149 Test Methods for Rubber DeteriorationCracking inan Ozone Controlled EnvironmentD1415 Test Method for Rubber PropertyInternationalHardnessD2240 Test Method f
8、or Rubber PropertyDurometer Hard-nessD3677 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 stor
9、m 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 manuf
10、acturer, nthe entity that molds the gasketscovered by this standard.3.2.3 virgin rubber, na term that may be used interchange-ably with raw rubber (raw thermoset elastomer). A rubber orthermoset elastomer that has not had any additional work,diluents incorporated, processes performed on it, or anyco
11、mbination 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 sol
12、e 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 the1This specification is under the jurisdiction of ASTM Committee A04 on IronCastings and is the
13、direct responsibility of Subcommittee A04.75 on Gaskets andCoupling for Plumbing and Sewer Piping.Current edition approved Oct. 1, 2012. Published January 2013. Originallyapproved in 1965. Last previous edition approved in 2011 as C564 11. DOI:10.1520/C0564-12.2For referenced ASTM standards, visit t
14、he 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 website.3Available from Association for Rubber Products Manufacturers (ARPM), 7321Shadeland Station Way, Sui
15、te 285, Indianapolis, IN 46256, http:/www.arpminc.org.4Available from Cast Iron Soil Pipe Institute (CISPI), http:/www.cispi.org.Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States1primary elastomer is polychloroprene (neoprene). The gask
16、etsshall be tested in accordance with Test Methods D3677.5. 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 Permissi
17、ble 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 s
18、mooth 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 for hard-ness 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 di
21、rectly 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 m
22、aterialshall 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, the
23、se 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 Tea
24、r Strength 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 t
25、estedfor 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 exc
26、eed a 24-h period for each size and type gasketproduced during that period.9.4.1 When testing pipe gaskets, the prepared specimensshall be 1-in. disks cut from prepared samples .075 in. (1.905mm) to .090-in. (2.286 mm) thick and not to exceed seven (7)plies. For hubless coupling gasket inserts a tes
27、t specimenmeasuring .43 in. (10.922 mm) .75 in. (19.05 mm) may becut directly from the part provided the sample is of consistentthickness. The thickness of the sample shall be measured inaccordance with Test Methods D395, section 13.1. Since allspecimens from hubless pipe gaskets are curved, not fla
28、t, it isimportant to measure the thickness in the center of the sampleTABLE 1 Physical Requirements of GasketsProperty Requirements ASTM Test MethodABCHardness (nominal durometer 5) as specified by thepipe manufacturer50 60 70 D2240Elongation, min, % 350 300 250 D412Tensile strength, min, psi 1500 1
29、500 1500 D412(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 2F (70 1C): D573Hardness increase, max, durometer points 10 10 10 .Loss in tensile strength, max,% 15 15 15 .Loss in elongation, max, % 20
30、 20 20 .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 122with the specimen laying in a
31、 concave manner. Measure thethickness of each ply and add the measured thickness of eachply (not to exceed seven plies) to determine the original pliedup thickness (to). The plied up target thickness should beapproximately .50 in. Take the original plied up thickness (to)and multiply it by .75 to de
32、termine the thickness of the spacerbar to be used (tn).Assemble the plied up specimens in the testfixture (Test Methods D395, Fig. 3) with the proper thicknessspacer bars and place in oven for 22 h at 158 +/- 2F (70 +/-1C). At the end of the test period take the device from theoven and remove the te
33、st specimens immediately and allow tocool in accordance with Test Methods D395, section 13.4.After the cooling period measure the final thickness at thecenter of the plied up test specimen placed in a concaveposition on the dial micrometer to determine the final thickness(ti). Calculate the compress
34、ion set expressed as a percentage ofthe original deflection as follows:CB 5 (to 2 ti)(to2 tn) 3 100CB = compression set value test method Bto = original plied up thicknessti = final plied up thicknesstn = thickness of spacer bar used9.5 Heat AgingThe gasket material shall be tested foreffects of hea
35、t 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 Water AbsorptionTh
36、e 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 shallbe used. The test specimen shall be immersed in distilled waterat 158 6 2F (70 6 1C)
37、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 D1149,using specimens and procedure spec
38、ified 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 change has occurre
39、d, 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 Immersion The gasket material shall be tested forvolume decrease due to oil absorption in acc
40、ordance 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 2F (100 6 1C). Test shall be performedannually or when a formulation change has occurred,
41、 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 re
42、presenting 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 by t
43、est 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 locat
44、ions.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 specificat
45、iondesignation. 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; rubberC564 123ANNEXES(Mandatory Information)A1. RUBBER MANUFACTURERS ASSOCIATION, INC. TOLERANCES
46、See Table 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 CERTIFICATIO
47、N 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 review of the manufacturers records to verifycompliance with Sections 4-9 of this standard.
48、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 inspection.These inspections shall include a dimensional and markinginspection of not less than
49、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 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 standa
