1、Designation:D186915(Reapproved 2022)Standard Specification forRubber Rings for Fiber-Reinforced Cement Pipe1This standard is issued under the fixed designation D1869;the number immediately following the designation indicates the year oforiginal adoption or,in the case of revision,the year of last re
2、vision.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 U.S.Department of Defense.1.Scope1.1 This specification covers rubber rings used t
3、o seal thejoints of asbestos-cement pipe conforming to SpecificationsC296,C428,C668,and non-asbestos fiber-cement pipe con-forming to Specification C1449.1.2 A specification is given for(1)natural or syntheticrubber rings,or both,where resistance to oil or solvents is notrequired,and(2)synthetic rub
4、ber rings for services involvingresistance to oil or solvents.1.3 The values stated in SI units are to be regarded as thestandard.The values given in parentheses are for informationonly.1.4 WarningBreathing of asbestos dust is hazardous.Asbestos and asbestos products present demonstrated healthrisks
5、 for users and for those with whom they come into contact.In addition to other precautions,when working with asbestos-cement products,minimize the dust that results.For informa-tion on the safe use of chrysotile asbestos,refer to“Safe Use ofChrysotile:A Manual on Preventive and Control Measures.”21.
6、5 The following safety hazards caveat pertains only to thetest methods portion,Section 9,of this standard:This standarddoes not 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 safety,health,and
7、 environ-mental practices and determine the applicability of regulatorylimitations prior to use.1.6 This international standard was developed in accor-dance with internationally recognized principles on standard-ization established in the Decision on Principles for theDevelopment of International St
8、andards,Guides and Recom-mendations issued by the World Trade Organization TechnicalBarriers to Trade(TBT)Committee.2.Referenced Documents2.1 ASTM Standards:3C296 Specification for Asbestos-Cement Pressure PipeC428 Specification forAsbestos-Cement Nonpressure SewerPipeC668 Specification for Asbestos
9、-Cement Transmission Pipe(Withdrawn 2019)4C1449 Specification for Non-Asbestos Fiber-Cement Non-pressure Sewer PipeD395 Test Methods for Rubber PropertyCompression SetD412 Test Methods for Vulcanized Rubber and Thermoplas-tic ElastomersTensionD471 Test Method for Rubber PropertyEffect of LiquidsD573
10、 Test Method for RubberDeterioration in an AirOvenD865 Test Method for RubberDeterioration by Heating inAir(Test Tube Enclosure)D1415 Test Method for Rubber PropertyInternationalHardnessD2137 Test Methods for Rubber PropertyBrittleness Pointof Flexible Polymers and Coated FabricsD2240 Test Method fo
11、r Rubber PropertyDurometer Hard-ness2.2 Other Document:5Rubber Manufacturers Association(RMA),Rubber Hand-book MO-1Molded,Extruded,Lathe-Cut and CellularProducts3.Composition and Manufacture3.1 The ring shall consist of a properly vulcanized virginrubber compound.Virgin rubber is defined as one cont
12、ainingno scrap,reclaim,or rubber substitutes.1This specification is under the jurisdiction ofASTM Committee D11 on Rubberand Rubber-like Materials and is the direct responsibility of Subcommittee D11.37on Coated Fabrics,Rubber Threads and Seals.Current edition approved Oct.1,2022.Published November
13、2022.Originallyapproved in 1961.Last previous edition approved in 2015 as D1869 15.DOI:10.1520/D1869-15R22.2Available from The Asbestos Institute,http:/ referenced ASTM standards,visit the ASTM website,www.astm.org,orcontact ASTM Customer Service at serviceastm.org.For Annual Book of ASTMStandards v
14、olume information,refer to the standards Document Summary page onthe ASTM website.4The last approved version of this historical standard is referenced onwww.astm.org.5Available from Rubber Manufacturers Association(RMA),1400 K St.,NW,Suite 900,Washington,DC 20005,http:/www.rma.org.Copyright ASTM Int
15、ernational,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United StatesThis international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for theDevelopment of International Standards,Guid
16、es and Recommendations issued by the World Trade Organization Technical Barriers to Trade(TBT)Committee.13.2 If a joint is used in the manufacture of the ring,thestrength of the spliced joint shall be such that the ring willwithstand the stretch test described in 9.8 with no visibleseparation or peeling.4.Physical Requirements4.1 Sample rings taken from the shipment shall conform tothe requirements for physical properties prescribed in Table 1when tested in accordance with the test methods speci
