1、Designation:F309514Standard Practice forLaser Technologies for Direct Measurement of CrossSectional Shape of Pipeline and Conduit by Rotating LaserDiodes and CCTV Camera System1This standard is issued under the fixed designation F3095;the number immediately following the designation indicates the ye
2、ar 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.1.Scope1.1 This practice covers the procedure for the post installa-tion
3、 verification and acceptance of buried pipe deformationusing a visible rotating laser light diode(s),a pipeline andconduit inspection analog or digital CCTV camera system andimage processing software.The combination CCTV pipeinspection system,with cable distance counter or onboarddistance encoder,ro
4、tating laser light diode(s)and ovalitymeasurement software shall be used to perform a pipe mea-surement and ovality confirmation survey,of new or existingpipelines and conduits as directed by the responsible contract-ing authority.1.2 This practice applies to all types of material,all types ofconstr
5、uction,or shape.1.3 This practice applies to gravity flow storm sewers,drains,sanitary sewers,and combined sewers with diametersfrom 6 to 72 in.(150 to 1800 mm).The pipe shall bepre-cleaned and free of debris that would prevent the CCTVcamera and laser diode assembly,shown in Fig.1,frommoving throug
6、h the pipe,or adversely affect the accuracy ofthe survey.Flow or debris,within the line,shall be less than10%of the nominal pipe diameter or 6 in.(150 mm)in depthwhichever is the lesser.1.4 The Laser Light Diode(s)shall be tested,labeled andcertified to conform to US requirements for CDRH Class 2 or
7、below(not considered to be hazardous)laser products orcertified to conform to EU requirements for Class 2M or belowlaser products as per IEC 60825-1,or both.1.5 The profiling process may require physical access tolines,entry manholes and operations along roadways that mayinclude safety hazards.1.6 T
8、his practice includes inspection requirements for de-termining pipeline and conduit ovality only and does notinclude all the required components of a complete inspection.The user of this practice should consider additional itemsoutside this practice for inspection such as joint gapmeasurement,soil/w
9、aterinfiltration,crackandholemeasurement,surface damage evaluation,evaluation of anypipeline repairs,and corrosion evaluation.1.7 This standard practice does not address limitations inaccuracy due to improper lighting,dust,humidity,fog,mois-ture on pipe walls or horizontal/vertical offsets.Care shou
10、ld betaken to limit environmental factors in the pipeline that affectaccuracy of the inspection.1.8 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
11、 standard.1.9 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 limitations prior to use.There ar
12、e no safetyhazards specifically,however,associated with the use of thelaser profiler specified(listed and labeled as specified in 1.3).2.Referenced Documents2.1 ASTM Standards:2E177 Practice for Use of the Terms Precision and Bias inASTM Test MethodsE691 Practice for Conducting an Interlaboratory St
13、udy toDetermine the Precision of a Test MethodF1216 Practice for Rehabilitation of Existing Pipelines andConduits by the Inversion and Curing of a Resin-Impregnated TubeF2019 Practice for Rehabilitation of Existing Pipelines andConduits by the Pulled in Place Installation of GlassReinforced Plastic(
14、GRP)Cured-in-Place ThermosettingResin Pipe(CIPP)1This 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 Sept.
15、1,2014.Published September 2014.DOI:10.1520/F3095-142For 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.Copyright ASTM
16、 International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 2.2 Other Documents:IEC 60825-1 Safety of Laser ProductsPart 1:EquipmentClassification and Requirements,Jan 20113CDRH Regulations CFR 21,Section I,Subchapter J,Parts1002 to 1040.1143.Terminology3.1 Definitions of Terms Specific to This Standard:3.1.1 authority,nparty reasonable for the generation andverification of performance to job specification(s)and contractrequirements.3.1.2 barrel distortion,ndi