1、Designation:F309715Standard Practice forInstallation of an Outside Sewer Service Cleanout through aMinimally Invasive Small Bore Vacuum Excavation1This standard is issued under the fixed designation F3097;the number immediately following the designation indicates the year oforiginal adoption or,in t
2、he 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 practice covers installation methods,test methodsand required materials for the instal
3、lation of an outside sewerservice clean out,by means of a small vacuum excavatedborehole.The utilization of this practice greatly reducesdisruption to the general public and requires minimal restora-tion.1.2 UnitsThe values stated in inch-pound units are to beregarded as standard.No other units of m
4、easurement areincluded in this standard.1.3 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 determine the applica-bility of regulatory lim
5、itations prior to use.2.Referenced Documents2.1 ASTM Standards:2C920 Specification for Elastomeric Joint SealantsD1600 Terminology forAbbreviated Terms Relating to Plas-ticsD2855 Practice for Making Solvent-Cemented Joints withPoly(Vinyl Chloride)(PVC)Pipe and FittingsD3034 Specification for Type PS
6、M Poly(Vinyl Chloride)(PVC)Sewer Pipe and FittingsF412 Terminology Relating to Plastic Piping Systems3.Terminology3.1 Unless otherwise indicated,definitions are in accor-dance with Terminology F412,and abbreviations are in accor-dance with Terminology D1600.3.2 Definitions of Terms Specific to This
7、Standard:3.2.1 adhesive/sealantan elastomeric bonding agent de-signed to provide a water activated,leak resistant flexible bondbetween a PVC pipe saddle and a lateral sewer service pipe.3.2.2 borehole a small diameter vacuum excavated hole.3.2.3 cleanouta fitting located on a lateral sewer servicepi
8、pe having a vertical riser pipe extending therefrom to thesurface providing access to the lateral sewer service pipe.3.2.4 cleanout riser pipea section of pipe that is con-nected to the boss of a saddle and extends from the saddle tothe surface.3.2.5 coringthe process of remotely cutting a hole thro
9、ughthe crown of a sewer service pipe such that the coupon isretrieved to establish communication from a cleanout riser pipeand a lateral sewer service pipe.3.2.6 coupona disc shaped piece of the lateral sewerservice pipe produced by coring.3.2.7 lateral sewer service pipea sewer pipe that connectsa
10、building to a municipal,main sewer pipe in a lateral directionand collects sanitary waste or storm water.3.2.8 saddlea PVC saddle that encompasses more than50%of a lateral sewer service pipe where the side walls of thesaddle extend beyond the spring line of the host pipe.Thesaddle includes setoff ta
11、bs that allow for uniform distributionof the adhesive/sealant.3.2.9 setoff tabsProtruding tabs located on the undersideof the saddle one located on each side of the saddle boss for thepurpose of insuring a specific annulus between the host pipeand the saddle and a specific layer thickness of adhesiv
12、e/sealant.3.2.10 sondea device outfitted in a closed circuit videoinspection camera that emits a signal in subterranean pipelinesthat is traceable by use of a locating receiver at surface.4.Summary of Practice4.1 The process of installing a cleanout through a minimallyinvasive excavation begins with
13、 locating the 4 in.or 6 in.sewerservice lateral.This is accomplished by use of a CCTVoutfitted with a locatable sonde and vacuum excavating a smallborehole,providing access to the exterior surface of a lateral1This practice is under the jurisdiction of ASTM Committee F17 on PlasticPiping Systems and
14、 is the direct responsibility of Subcommittee F17.67 onTrenchless Plastic Pipeline Technology.Current edition approved May 15,2015.Published June 2015.DOI:10.1520/F3097152For referenced ASTM standards,visit the ASTM website,www.astm.org,orcontact ASTM Customer Service at serviceastm.org.For Annual B
15、ook 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 Conshohocken,PA 19428-2959.United States1 sewer service pipe.Once the lateral sewer service pipe hasbeen exposed,a self-clamping
16、 saddle is prepared by applyinga specified amount of adhesive/sealant to the underside of thesaddle and a riser pipe is attached to the boss of the saddle.Theprepared saddle is lowered into the small diameter bore holeuntil it contacts the lateral sewer service pipe;a downwardforce is applied to the riser pipe causing the side walls of thesaddle to spread and encompass more than 50-percent of thehost pipe.Surface restoration is minimal and in most cases isaccomplished the same day the cleanout i
