SAE AMS3568/2 Foam, Polyether Urethane (EU) Elastomer, Shick Absorbing 15 Pounds/Cubic Foot (240 kg/m{sup}3) Density
时间:2024-05-02 19:45:43 来源: 标准资料网 作者：标准资料网 阅读：9441
Product Code:SAE AMS3568/2
Title:Foam, Polyether Urethane (EU) Elastomer, Shick Absorbing 15 Pounds/Cubic Foot (240 kg/m{sup}3) Density
Issuing Committee:Ams P Polymeric Materials Committee
Scope: This specification covers a chemically or mechanically expanded polyether urethane (EU) elastomeric foam material in the form of ready-to-use sheet. Primarily for use in applications where shock absorbing characteristics and cushioning are required and where flammability does not preclude its use.
【英文标准名称】:StandardPracticeforEvaluatingPerformanceCharacteristicsofUltrasonicPulse-EchoTestingInstrumentsandSystemswithouttheUseofElectronicMeasurementInstruments
【原文标准名称】:不用电子测量仪、超声波脉冲回音试验制运转性能的评估的标准操作规程
【标准号】:ASTME317-2006a
【标准状态】:现行
【国别】:
【发布日期】:2006
【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】:E07.06
【标准类型】:(Practice)
【标准水平】:()
【中文主题词】:无损检验;工艺;试验设备;试验;超声检验;超声波学
【英文主题词】:evaluationofpulse-echoexaminationsystems;evaluationofultrasonicpulse-echoinstruments;nondestructivetesting;performancecharacteristicsofultrasonicexaminationinstruments;performancecharacteristicsofultrasonicexaminationsystems;p
【摘要】:1.1Thispracticedescribesproceduresforevaluatingthefollowingperformancecharacteristicsofultrasonicpulse-echoexaminationinstrumentsandsystems:HorizontalLimitandLinearity;VerticalLimitandLinearity;Resolution-EntrySurfaceandFarSurface;SensitivityandNoise;AccuracyofCalibratedGainControls.Evaluationofthesecharacteristicsisintendedtobeusedforcomparinginstrumentsandsystemsor,byperiodicrepetition,fordetectinglong-termchangesinthecharacteristicsofagiveninstrumentorsystemthatmaybeindicativeofimpendingfailure,andwhich,ifbeyondcertainlimits,willrequirecorrectivemaintenance.Instrumentcharacteristicsmeasuredinaccordancewiththispracticeareexpressedintermsthatrelatetotheirpotentialusefulnessforultrasonicexaminations.InstrumentcharacteristicsexpressedinpurelyelectronictermsmaybemeasuredasdescribedinE1324.1.2Ultrasonicexaminationsystemsusingpulsed-wavetrainsandA-scanpresentation(rforvideo)maybeevaluated.1.3Theproceduresareapplicabletoshoporfieldconditions;additionalelectronicmeasurementinstrumentationisnotrequired.1.4Thispracticeestablishesnoperformancelimitsforexaminationsystems;ifsuchacceptancecriteriaarerequired,thesemustbespecifiedbytheusingparties.Whereacceptancecriteriaareimpliedhereintheyareforexampleonlyandaresubjecttomoreorlessrestrictivelimitsimposedbycustomer''sandenduser''scontrollingdocuments.1.5Thespecificparameterstobeevaluated,conditionsandfrequencyoftest,andreportdatarequired,mustalsobedeterminedbytheuser.1.6Thispracticemaybeusedfortheevaluationofacompleteexaminationsystem,includingsearchunit,instrument,interconnections,fixturesandconnectedalarmandauxiliarydevices,primarilyincaseswheresuchasystemisusedrepetitivelywithoutchangeorsubstitution.Thispracticeisnotintendedtobeusedasasubstituteforcalibrationorstandardizationofaninstrumentorsystemtoinspectanygivenmaterial.Therearelimitationstotheuseofstandardreferenceblocksforthatpurpose.1.7Requiredtestapparatusincludesselectedtestblocksandaprecisionexternalattenuator(wherespecified)inadditiontotheinstrumentorsystemtobeevaluated.1.8Precautionsrelatingtotheapplicabilityoftheproceduresandinterpretationoftheresultsareincluded.1.9Alternateprocedures,suchasexamplesdescribedinthisdocument,orothers,mayonlybeusedwithcustomerapproval.Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:N77
【国际标准分类号】:19_100
【页数】:13P.;A4
【正文语种】:
【英文标准名称】:SummaryofChanges
【原文标准名称】:更改摘要
【标准号】:ASMESECIIID1APPA2003-2003
【标准状态】:现行
【国别】:美国
【发布日期】:2003-07-01
【实施或试行日期】:
【发布单位】:美国机械工程师协会(US-ASME)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:
【英文主题词】:
【摘要】:BoilerandPressureVessel.ASMESECIIID1APPA2003SummaryofChanges
【中国标准分类号】:F69
【国际标准分类号】:
【页数】:
【正文语种】:英语