SAE AS5421 Hose Assembly, Lined Silicone, Heated, Flareless, 125 psi, Potable Water
作者:标准资料网 时间:2024-05-16 00:32:09 浏览:9749
来源:标准资料网
Product Code:SAE AS5421
Title:Hose Assembly, Lined Silicone, Heated, Flareless, 125 psi, Potable Water
Issuing Committee:G-3, Aerospace Couplings, Fittings, Hose, Tubing Assemblies
Scope:No scope available.
【英文标准名称】:StandardPracticeforAcousto-UltrasonicAssessmentofFilament-WoundPressureVessels
【原文标准名称】:纤维缠绕压力容器的声-超声评估的标准实施规程
【标准号】:ASTME1736-2010
【标准状态】:现行
【国别】:美国
【发布日期】:2010
【实施或试行日期】:
【发布单位】:美国材料与试验协会(US-ASTM)
【起草单位】:E07.04
【标准类型】:(Practice)
【标准水平】:()
【中文主题词】:
【英文主题词】:acousticemission;acousto-ultrasonics;fiberreinforcedcomposites;filament-woundpressurevessels;nondestructiveevaluation;nondestructivetesting;Pressurevessels;Acousticemission(AE)testing;Acousto-ultrasonic(AU)method;Composites;Fi
【摘要】:TheAUmethodshouldbeconsideredforvesselsthatareproventobefreeofmajorflawsordiscontinuitiesasdeterminedbyconventionaltechniques.TheAUmethodmaybeusedfordetectingmajorflawsifothermethodsaredeemedimpractical.Itisimportanttousemethodssuchasimmersionpulse-echoultrasonics(PracticeE1001)andacousticemission(PracticeE1067)toascertainthepresenceofmajorflawsbeforeproceedingwithAU.TheAUmethodisintendedalmostexclusivelyformaterialscharacterizationbyassessingthecollectiveeffectsofdisperseddefectsandsubcriticalflawpopulations.ThesearematerialaberrationsthatinfluenceAUmeasurementsandalsounderliemechanicalpropertyvariations,dynamicloadresponse,andimpactandfractureresistance.TheAUmethodcanbeusedtoevaluatelaminatequalityusingaccesstoonlyonesurface,theusualconstraintimposedbyclosedpressurevessels.Forbestresults,theAUprobesmustbefixturedtomaintaintheprobeorientationatnormalincidencetothecurvedsurfaceofthevessel.Giventheseconstraints,thispracticedescribesaprocedureforautomatedAUscanningusingwatersquirterstoassesstheserviceabilityandreliabilityoffilament-woundpressurevessels.1.1Thispracticecoversaprocedureforacousto-ultrasonic(AU)assessmentoffilament-woundpressurevessels.Guidelinesaregivenforthedetectionofdefectstatesandflawpopulationsthatariseduringmaterialsprocessingormanufacturingoruponexposuretoaggressiveserviceenvironments.Althoughthispracticedescribesanautomatedscanningmode,similarresultscanbeobtainedwithamanualscanningmode.1.2ThisprocedurerecommendstechnicaldetailsandrulesforthereliableandreproducibleAUdetectionofdefectstatesandflawpopulations.TheAUproceduredescribedhereincanbeabasisforassessingtheserviceabilityoffilament-woundpressurevessels.1.3TheobjectiveoftheAUmethodisprimarilytheassessmentofdefectstatesanddiffuseflawpopulationsthatinfluencethemechanicalstrengthandultimatereliabilityoffilament-woundpressurevessels.TheAUapproachandprobeconfigurationaredesignedspecificallytodeterminecompositepropertiesinlateralratherthanthrough-the-thicknessdirections.1.4TheAUmethodisnotforflawdetectionintheconventionalsense.TheAUmethodismostusefulformaterialscharacterization,asexplainedinGuideE1495,whichgivestherationaleandbasictechnologyfortheAUmethod.Flawsanddiscontinuitiessuchaslargevoids,disbonds,orextendedlackofcontactofinterfacescanbefoundbyothernondestructiveexamination(NDE)methodssuchasimmersionpulse-echoultrasonics.1.5Units8212;ThevaluesstatedinSIunitsaretoberegardedasstandard.Nootherunitsofmeasurementareincludedinthispractice.1.6Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:J74
【国际标准分类号】:19_100
【页数】:5P.;A4
【正文语种】:英语
【英文标准名称】:StandardTestMethodforAirborneSoundAttenuationBetweenRoomsSharingaCommonCeilingPlenum
【原文标准名称】:共用一个天花板中通风系统的房间之间气载噪声衰减率的标准试验方法
【标准号】:ASTME1414-2000
【标准状态】:作废
【国别】:美国
【发布日期】:2000
【实施或试行日期】:
【发布单位】:美国材料与试验协会(ASTM)
【起草单位】:ASTM
【标准类型】:()
【标准水平】:()
【中文主题词】:
【英文主题词】:
【摘要】:
【中国标准分类号】:P31
【国际标准分类号】:91_120_20
【页数】:8P;A4
【正文语种】:英语
