ASTM_E_1419_-_E_1419M_-_15a.pdf

Designation:E1419/E1419M15aStandard Practice forExamination of Seamless,Gas-Filled,Pressure VesselsUsing Acoustic Emission1This standard is issued under the fixed designation E1419/E1419M;the number immediately following the designation indicates the yearof original adoption or,in the case of revision,the year of last revision.A number in parentheses indicates the year of last reapproval.A superscript epsilon()indicates an editorial change since the last revision or reapproval.1.Scope*1.1 This practice provides guidelines for acoustic emission(AE)examinations of seamless pressure vessels(tubes)of thetype used for distribution or storage of industrial gases.1.2 This practice requires pressurization to a level greaterthan normal use.Pressurization medium may be gas or liquid.1.3 This practice does not apply to vessels in cryogenicservice.1.4 The AE measurements are used to detect and locateemission sources.Other nondestructive test(NDT)methodsmust be used to evaluate the significance of AE sources.Procedures for other NDT techniques are beyond the scope ofthis practice.See Note 1.NOTE1Shear wave,angle beam ultrasonic examination is commonlyused to establish circumferential position and dimensions of flaws thatproduceAE.Time of Flight Diffraction(TOFD),ultrasonic examination isalso commonly used for flaw sizing.1.5 The values stated in either SI units or inch-pound unitsare to be regarded separately as standard.The values stated ineach system may not be exact equivalents;therefore,eachsystem shall be used independently of the other.Combiningvalues from the two systems may result in non-conformancewith the standard.1.6 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.Specific precau-tionary statements are given in Section 7.2.Referenced Documents2.1 ASTM Standards:2E543 Specification for Agencies Performing NondestructiveTestingE650 Guide for Mounting Piezoelectric Acoustic EmissionSensorsE976 Guide for Determining the Reproducibility ofAcousticEmission Sensor ResponseE1316 Terminology for Nondestructive ExaminationsE2223 Practice for Examination of Seamless,Gas-Filled,Steel Pressure Vessels Using Angle Beam UltrasonicsE2075 Practice for Verifying the Consistency of AE-SensorResponse Using an Acrylic RodE2374 Guide for Acoustic Emission System PerformanceVerification2.2ASNT Standards:3Recommended Practice SNT-TC-1A for NondestructiveTesting Personnel Qualification and CertificationANSI/ASNT CP-189 Standard for Qualification and Certifi-cation of Nondestructive Testing Personnel2.3 Code of Federal Regulations:Section 49,Code of Federal Regulations,Hazardous Mate-rials Regulations of the Department of Transportation,Paragraphs 173.34,173.301,178.36,178.37,and 178.4542.4 Compressed Gas Association Standard:5Pamphlet C-5 Service Life,Seamless High Pressure Cylin-ders1This practice is under the jurisdiction of ASTM Committee E07 on Nonde-structive Testing and is the direct responsibility of Subcommittee E07.04 onAcoustic Emission Method.Current edition approved Dec.1,2015.Published December 2015.Originallyapproved in 1991.Last previous edition approved in 2015 as E1419 15.DOI:10.1520/E1419_E1419M-15A.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 fromAmerican Society for Nondestructive Testing(ASNT),P.O.Box28518,1711 Arlingate Ln.,Columbus,OH 43228-0518,http:/www.asnt.org.4Available from U.S.Government Printing Office Superintendent of Documents,732 N.Capitol St.,NW,Mail Stop:SDE,Washington,DC 20401,http:/www.access.gpo.gov.5Available from Compressed Gas Association(CGA),4221 Walney Rd.,5thFloor,Chantilly,VA 20151-2923,http:/.*A Summary of Changes section appears at the end of this standardCopyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 CGA-C18 Methods for Acoustic Emission Requalificationof Seamless Steel Compressed Gas Tubes2.5 AIA Document:NAS-410 Certification and Qualification of NondestructiveTesting Personnel62.6 ISO Standards:7ISO 9712 Non-destructive TestingQualification and Cer-tification of NDT PersonnelISO 16148 Gas CylindersAcoustic Emission Testing(AT)for Periodic Inspection3.Terminology3.1 DefinitionsSee Terminology E1316 for general termi-nology applicable to this practice.3.2 Definitions of Terms Specific to This Standard:3.2.1 fracture critical flawa flaw that is large enough toexhibit unstable growth at service conditions.3.2.2 marked service pressurepressure for which a vesselis rated.Normally this value is stamped on the vessel.3.2.3 normal fill pressurelevel to which a vessel is pres-surized.This may be greater,or