1、Designation: C1091 03a (Reapproved 2018)Standard Test Method forHydrostatic Infiltration Testing of Vitrified Clay Pipe Lines1This standard is issued under the fixed designation C1091; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision
2、, 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 test method defines procedures for hydrostaticinfiltration testing of new installations of vitrifie
3、d clay pipelines, to demonstrate the structural integrity of the installedline. Refer to Practice C12.1.2 This test method is suitable for testing gravity-flow pipelines constructed of vitrified clay pipe or combinations of claypipe and other pipe materials.1.3 This test method is applicable to the
4、testing of the pipelines only. Manholes or other structures should be testedseparately.1.4 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 standar
5、d.1.5 This standard does not purport to address all of thesafety concerns, if any, associated with its use. It is theresponsibility of the user of this standard to establish appro-priate safety, health, and environmental practices and deter-mine the applicability of regulatory limitations prior to u
6、se.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 Standards, Guides and Recom-mendations issued by the World Trade Organization TechnicalBarriers
7、 to Trade (TBT) Committee.2. Referenced Documents2.1 ASTM Standards:2C12 Practice for Installing Vitrified Clay Pipe LinesC828 Test Method for Low-Pressure Air Test of VitrifiedClay Pipe LinesC896 Terminology Relating to Clay Products3. Terminology3.1 Terminology C896 can be used for clarifications
8、ofterminology in this test method.4. Summary of Test Method4.1 This test method shall be performed on lines afterconnection laterals, if any, have been plugged and adequatelybraced to withstand the test pressure, and after the trencheshave been backfilled and compacted.5. Significance and Use5.1 The
9、 tests called for herein, for their results, indicate theacceptability of installed vitrified clay pipelines.6. Preparation of the Line6.1 To ensure the proper seating of the test plugs and theaccuracy of the test, the lines should be cleaned prior to testing.6.2 Examples of methods for cleaning the
10、 lines are thesewer cleaning ball and high pressure flushing equipment.7. Procedure7.1 The hydrostatic infiltration test procedure is applicablewhere the measured water table is 2 ft (610 mm) or greaterabove the pipe barrel at the lower manhole of the test section.Where the ground water elevation is
11、 indeterminate, less than 2ft (610 mm) above the top of the pipe barrel, or the line ispartially below the water table, use a combination of both theair test and infiltration procedure.NOTE 1The most practical method for testing is Test Method C828,and is recommended. However, where ground water is
12、present and meetsthe criteria established in , the infiltration test procedure outlined in thispractice is recommended.7.2 Determine the allowable infiltration rate for the testsection using Table 1.NOTE 2What can be called false infiltration represents condensate onthe pipe walls.7.3 The test rate
13、table is based on the standard of 50 gal/in.diametermileday (4.6 L/mm diameterkilometreday).7.4 Table 1 shows the allowable infiltration rate ingallons 100 ft of pipe hour (litres per 30.5 metres hour) foreach nominal pipe size.1This test method is under the jurisdiction ofASTM Committee C04 on Vitr
14、ifiedClay Pipe and is the direct responsibility of Subcommittee C04.20 on Methods ofTest and Specifications.Current edition approved Sept. 1, 2018. Published September 2018. Originallypublished in 1988. Last previous edition approved in 2013 as C1091 03a (2013).DOI: 10.1520/C1091-03AR18.2For referen
15、ced 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 ASTM website.Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Co
16、nshohocken, 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, Guides and Recommendations issued by the World Trade
17、Organization Technical Barriers to Trade (TBT) Committee.17.5 If the test section includes more than one pipe size,calculate the allowable test rate for each size and add to arriveat the total allowable test rate for the test section.7.6 Discontinue all pumping of ground water for a period of24 h pr
18、ior to testing.7.7 Plug the inlet to the section to be tested. If there isinfiltration in the section upstream from the test section, theupstream section shall be plugged off or dewatered to preventthe manhole from filling with water.7.8 Begin collection and measurement after constant flow isgenerat
19、ed at the test section outlet. Collect the infiltration in acalibrated container or use a calibrated weir.7.9 Terminate the infiltration test when sufficient water iscollected or measured, or both, to establish the test rate.7.10 If the infiltration rate (Table 1) is within the establishedlimit, the
20、 line is presumed to have passed the test.7.11 If there is no flow in the test section or the flow isminimal and cannot be measured, the line has passed the test.8. Precision and Bias8.1 No statement is made about either the precision or biasof this test method for measuring gallons (litres) and tim
21、e,since the results merely state whether there is conformance tothe criteria for success specified in the procedure.9. Keywords9.1 air test; clay pipe; hydrostatic test; infiltration; pipe;pressure test; sewers; vitrified clay pipe; water testASTM International takes no position respecting the valid
22、ity 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 subje
23、ct 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 standard or for additional standardsand should be addressed to ASTM International Headquart
24、ers. 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 views known to the ASTM Committee on Standards, at the address shown below.This standard
25、 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 servic
26、eastm.org (e-mail); or through the ASTM website(www.astm.org). Permission rights to photocopy the standard may also be secured from the Copyright Clearance Center, 222Rosewood Drive, Danvers, MA 01923, Tel: (978) 646-2600; http:/ 1 Allowable Infiltration Test Rate in Gallons/100 ft ofLine Hour (Litr
27、e/Metre Hour)nominal pipesize,in. (mm)gal/100 ft h(L/m h)nominal pipesizein. (mm)gal/100 ft h(L/m h)4 (100) 0.16 (0.020) 24 (610) 0.95 (0.12)6 (150) 0.24 (0.030) 27 (685) 1.1 (0.13)8 (200) 0.32 (0.039) 30 (760) 1.2 (0.15)10 (255) 0.39 (0.049) 33 (840) 1.3 (0.16)12 (305) 0.47 (0.059) 36 (915) 1.4 (0.18)15 (380) 0.59 (0.073) 39 (990) 1.5 (0.19)18 (455) 0.71 (0.088) 42 (1070) 1.7 (0.21)21 (535) 0.83 (0.10) 48 (1220) 1.9 (0.24)C1091 03a (2018)2
