ASTM_F_2454_-_05_2016e1.pdf

Designation:F245405(Reapproved 2016)1Standard Practice forSealing Lateral Connections and lines from the mainlineSewer Systems by the Lateral Packer Method,UsingChemical Grouting1This standard is issued under the fixed designation F2454;the number immediately following the designation indicates the year oforiginal adoption 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.1NOTEEditorial changes were made throughout in May 2016.INTRODUCTIONThe infiltration of water in sanitary sewer systems through the lateral service connection and thefirst few joints of the lateral below the groundwater table is a major problem for collection systemowners.The combined length of the lateral services often exceeds the length of the mainline sewers.Often,the lateral services have been built with little or no supervision and little or no above-groundaccess for monitoring and inspection.1.Scope1.1 This practice covers the procedures for testing andsealing sewer lateral connections and lateral lines from themainline sewer with appropriate chemical grouts using thelateral packer method.Chemical grouting is used to stopinfiltration of ground water and exfiltration of sewage ingravity flow sewer systems that are structurally sound.1.2 This practice applies to mainline sewer diameters of 6 to24 in.with 4,5,or 6 in.diameter laterals.Larger diameter pipeswith lateral connections and lines can be grouted with specialpackers or man-entry methods.The mainline and lateral pipesmust be structurally adequate to create an effective seal.1.3 Worker safety training should include reviewing thebiohazards and gases from sewage,confined spaces,pumpingequipment,and related apparatus.Additional safety consider-ations including proper handling,mixing,and transporting ofchemical grouts should be provided by the chemical groutmanufacturer or supplier,or both.Their safe operating prac-tices and procedures should describe in detail appropriatepersonal protective equipment(PPE)for the various groutingoperations.Operations covered should include the properstorage,transportation,mixing,and disposal of chemicalgrouts,additives,and their associated containers.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 standard.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 and health practices and to determine theapplicability of regulatory limitations prior to use.2.Referenced Documents2.1 ASTM Standards:2F2304 Practice for Sealing of Sewers Using ChemicalGrouting2.2NASSCO Standard:3NASSCO Specification GuidelinesWastewater CollectionSystem Maintenance and Rehabilitation,20033.Significance and Use3.1 The inspection,testing,and repair of lateral connectionsfor sanitary sewers are regular practice necessary for themaintenance and optimal performance of the system.It isimportant to identify methods that use the most currentcompounds and technology to ensure the reduction of infiltra-tion and exfiltration.It is important to minimize disruption to1This practice is under the jurisdiction of ASTM Committee F36 on Technologyand Underground Utilities and is the direct responsibility of Subcommittee F36.20on Inspection and Renewal of Water and Wastewater Infrastructure.Current edition approved April 1,2016.Published May 2016.Originallyapproved 2005.Last previous edition approved in 2010 as F2454 05(2010).DOI:10.1520/F2454-05R16E01.2For 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 ASTM website.3Available from National Association of Sewer Service Companies(NASSCO),Inc.,2470 Longstone Lane,Suite M,Marriottsville,MD 21104,http:/www.nassco.org.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 traffic and lessen the environmental impacts for both themunicipal and private owners.3.2 This practice serves as a means to inspect,test,and sealsewer lateral connections and a predetermined portion of thelateral lines from the mainline sewer,having selected theappropriate chemical grouts using the lateral packer method.Television(or optical)inspection and sewer lateral connectiontesting are used to assess the condition and document anyrepairs.3.3 This practice should not be used where mainline andlateral connections are found with longitudinally cracked pipe,structurally unsound pipe,or flattened or out of round pipe.4.Contract Responsibilities4.1 The lateral connection sealing contracts should define oraffix responsibil