EN 12223-1999 无损检验.超声波检验.1号校准块规范
时间:2024-05-20 20:01:06 来源: 标准资料网 作者：标准资料网 阅读：9762
【英文标准名称】:Non-destructivetesting-Ultrasonicexamination-SpecificationforcalibrationblockNo.1;GermanversionEN12223:1999
【原文标准名称】:无损检验.超声波检验.1号校准块规范
【标准号】:EN12223-1999
【标准状态】:现行
【国别】:
【发布日期】:2000-01
【实施或试行日期】:
【发布单位】:欧洲标准学会(EN)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:超声波学;钢产品;调节;超声探伤仪;参考块;试验;试样;规范(验收);材料;生产;特性;检验;校正;无损检验;超声波装置;校准块;超声检验;描述
【英文主题词】:Adjustment;Calibration;Calibrationblocks;Checks;Descriptions;Materials;Non-destructivetesting;Production;Properties;Referenceblock;Specification(approval);Steelproducts;Testspecimens;Testing;Ultrasonicdevices;Ultrasonicflawdetector;Ultrasonictesting;Ultrasonics
【摘要】:
【中国标准分类号】:H26
【国际标准分类号】:19_100
【页数】:8P.;A4
【正文语种】:英语
【英文标准名称】:StandardTestMethodforMeasuringReactionRatesbyAnalysisofBarium-140FromFissionDosimeters
【原文标准名称】:通过分析由裂变剂量计产生的钡140来测定反应速率的试验方法
【标准号】:ASTME393-1996(2002)
【标准状态】:现行
【国别】:
【发布日期】:1996
【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】:E10.05
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:分析;核技术;测量技术;核能;剂量计;钡
【英文主题词】:Barium-140;fissiondosimeter;fissionproduct;fissionreactionrates;
【摘要】:1.1Thistestmethoddescribestwoproceduresforthemeasurementofreactionratesbydeterminingtheamountofthefissionproduct140Baproducedbythenon-thresholdreactions235U(n,f),241Am(n,f),and239Pu(n,f),andbythethresholdreactions238U(n,f),237Np(n,f),and232Th(n,f).1.2Thesereactionsproducemanyfissionproducts,amongwhichis140Ba,havingahalf-lifeof12.752days.140Baemitsgammaraysofseveralenergies;however,thesearenoteasilydetectedinthepresenceofotherfissionproducts.Competingactivityfromotherfissionproductsrequiresthatachemicalseparationbeemployedorthatthe140Baactivitybedeterminedindirectlybycountingitsdaughterproduct140La.Thistestmethoddescribesbothprocedure(a),thenondestructivedeterminationof140Babythedirectcountingof140Laseveraldaysafterirradiation,andprocedure(b),thechemicalseparationof140Baandthesubsequentcountingof140Baoritsdaughter140La.1.3Withsuitabletechniques,fissionneutronfluenceratescanbemeasuredintherangefrom107n(neutrons)cm2s1toapproximately1015ncm2s1.1.4Themeasurementoftime-integratedreactionrateswithfissiondosimetersby140Baanalysisislimitedbythehalf-lifeof140Batoirradiationtimesuptoaboutsixweeks.1.5ThevaluesstatedinSIunitsaretoberegardedasstandard.1.6Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:F40
【国际标准分类号】:17_240
【页数】:5P.;A4
【正文语种】:
Product Code:SAE AIR974
Title:Long-Term Storage of Missile Hydraulic Systems (NONCURRENT Dec 1994)
Issuing Committee:A-6a2 Military Aircraft Committee
Scope:Queries are not easily answered as to how long a missile hydraulic system may be inoperatively stored without affecting its final performance. This Aerospace Information Report summarizes the pertinent results of hydraulic system practices leading to greater storability. Much of the available long-term storage test data has been reviewed and topically separated to enable the independent discussion of storage effects on fluids, seals, hydraulic components, and hydraulic systems. Comments are made in Section 4 concerning the applicability of the test results and regarding design practices for storability. Conclusions are drawn in Section 5 regarding inactive storage of hydraulic systems for at least a 7 year period.