1、Designation: A 1045 08Standard Specification forFlexible Poly (Vinyl Chloride) (PVC) Gaskets used inConnection of Water Closets to Sanitary Drainage System1This standard is issued under the fixed designation A 1045; the number immediately following the designation indicates the year oforiginal adopt
2、ion or, in the 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.1. Scope1.1 This specification covers material and performancerequirements for plasti
3、cized PVC compression gaskets used inthe connection of residential and commercial water closets to 3and 4-in. sanitary drainage pipe. These type gaskets areinserted into and compress against the inside diameter of thesewer pipe while attaching to the water closet with a flexibleadhesive. The result
4、is a gas- and water-tight seal.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 considered standard.1.3 This standard does not purport to address all of t
5、hesafety concerns, is any, associated with its use. It is theresponsibility of the user of this standard to establish appro-priate safety and health practices and to determine theapplicability of regulatory limitations prior to use.2. Referenced Documents2.1 ASTM Standards:2A 644 Terminology Relatin
6、g to Iron CastingsD 5926 Specification for Poly (Vinyl Chloride) (PVC) Gas-kets for Drain, Waste, and Vent (DWV), Sewer, Sanitary,and Storm Plumbing Systems3. Terminology3.1 Definitions For definitions of terms in this specifica-tion refer to Terminology A 644.4. Materials and Manufacture4.1 These t
7、ype gaskets are manufactured principally fromvirgin injection grade plasticized PVC compounds. Recycledmaterials may be used in this product in accordance withSection 5.4.2 Adhesives used in the attachment of water closet gasketsshall be compatible with the component gasket material and thesanitary
8、drain system. Butyl rubber-based adhesives are knownto have such characteristics.5. Gasket Requirements5.1 Physical and mechanical properties of plasticized PVCgaskets for the connection of water closets to the sanitarydrainage system shall comply with Specification D 5926.5.2 Gaskets shall be teste
9、d in accordance with Section 9 onpipe samples complying with applicable industry standards ofmaximum and minimum dimensions. It shall be permissible tomachine pipe samples to attain maximum or minimum dimen-sions, or both.5.3 The gasket assembly when tested in accordance withSection 9 shall not leak
10、.5.4 The gasket shall accommodate water closets and closetflanges conforming to applicable industry standards.6. Dimensions, Mass, and Permissible Variations6.1 Gaskets shall conform to the dimensions and dimen-sional tolerances as agreed upon between the supplier andpurchaser. All dimensions shall
11、be compatible with the dimen-sions and tolerances of the specific pipe materials and sizes andwater closet to which it is designed to join.7. Workmanship, Finish and Appearance7.1 The surface of preformed gaskets shall be smooth andfree from pitting, cracks, blisters, air marks, or any otherimperfec
12、tions that may affect product performance in service7.2 Neither the flash thickness nor the flash extension shallexceed132 in. (1 mm).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
13、 Plumbing and Sewer Piping.Current edition approved Oct. 1, 2008. Published November 2008. Originallyapproved in 2005. Last previous edition approved in 2005 as A 1045 05.2For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service at serviceastm.org. For Ann
14、ual Book of ASTMStandards 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.7.3 Mold release, oil, or grease used in the manufacturingprocess will have
15、 a detrimental effect on the ability of theadhesive to adhere to the flanged surface of the water closetgasket. Care should be taken not to contaminate the flangedsurface of the gasket.8. Sampling, Tests, and Retests8.1 Test specimens representative of the gaskets to be usedshall be randomly selecte
16、d from the manufactured lot fortesting. The manufactured lot shall be a minimum of eighthours old. Tests shall be performed at room temperature.8.2 Where there is a failure in the original test, the entire testshall be rerun with twice the number of samples and any failureshall be cause for rejectio
17、n.9. Test Method for Assembled Gaskets9.1 Test ApparatusThe apparatus used to conduct this testshall be designed as illustrated in Fig. 1. The test apparatusshall be constructed of clear acrylic with a polished finish.9.2 Significance and UseThis test method is useful indetermining the ability of th
18、e gasket assembly to provide apermanent seal against water, sewer, sewer gas and the like inwater closet to sewer pipe applications.9.3 HazardsThis is a pressurized hydrostatic test andunder no circumstances shall water be substituted with air.Care should be taken in expelling all air prior to press
19、urizingthe test assembly. Wear eye protection during pressure tests andstrictly adhere to safety precautions at all times.9.4 ProcedureHydrostatic Joint Tightness Test: Wipe thesurface of the test apparatus with denatured alcohol. Apply thegasket assembly to the test apparatus. Insert the test appar
20、atusassembly into the test pipe providing a 0.500 in. (12.7 mm) to0.750 in. (19.1 mm) spacer between the test apparatus and thecloset flange. Securely tighten the test apparatus to the closetflange, fill the assembly with water expelling all air, pressurizeto 4.3 psi for a period of 15 min. Any leak
21、age shall result infailure. Refer to Fig. 2.10. Certification10.1 The gasket manufacturer shall keep appropriate pro-duction and testing records showing compliance to this speci-fication, including certified documentation from the PVCcompound producer showing compliance with SpecificationD 5926. The
22、 manufacturer shall be required to provide saidinformation at the request of the purchaser.11. Product Marking11.1 Each gasket shall be marked with the manufacturersname or trademark, or both.11.2 The type and size of pipe for which the gasket is or themanufacturers product identification shall be m
23、arked on orattached to each gasket.11.3 All gaskets shall be marked with the designationASTM _ showing compliance to this specification.12. Keywords12.1 flexible gaskets; plasticized; poly(vinyl chloride)(PVC); sanitary drainage; water closet gasketsA1045082FIG. 1 Test ApparatusA1045083FIG. 2 Test A
24、ssemblyExploded ViewA1045084ASTM 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 infr
25、ingement 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 this standa
26、rd 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 you feel that your comments have not received a fair hearing you shouldmake your vie
27、ws 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).FIG. 3 Test AssemblyCross Section ViewA1045085
