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ASTM D1943-2005 水的α粒子放射性的标准试验方法

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【英文标准名称】:StandardTestMethodforAlphaParticleRadioactivityofWater
【原文标准名称】:水的α粒子放射性的标准试验方法
【标准号】:ASTMD1943-2005
【标准状态】:现行
【国别】:
【发布日期】:2005
【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】:D19.04
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:α-辐射;核能;放射性;试验;水
【英文主题词】:grossalpharadioactivity;grossradioactivitymeasurement;proportionalcounter;water
【摘要】:Thistestmethodwasdevelopedforthepurposeofmeasuringgrossalpharadioactivityinwater.Itisusedfortheanalysisofbothprocessandenvironmentalwatertodeterminegrossalphaactivitywhichisoftenaresultofnaturalradioactivitypresentinminerals.1.1Thistestmethodcoversthemeasurementofalphaparticleactivityofwater.Itisapplicabletonuclidesthatemitalphaparticleswithenergiesabove3.9MeVandatactivitylevelsabove0.02Bq/mL(540pCi/L)ofradioactivehomogeneouswater.Thistestmethodisnotapplicabletosamplescontainingalpha-emittingradionuclidesthatarevolatileunderconditionsoftheanalysis.1.2Thistestmethodcanbeusedforeitherabsoluteorrelativedeterminations.Intracerwork,theresultsmaybeexpressedbycomparisonwithastandardthatisdefinedtobe100%.Forradioassay,datamaybeexpressedintermsofalphadisintegrationratesaftercalibrationwithasuitablestandard.GeneralinformationonradioactivityandmeasurementofradiationhasbeenpublishedandsummarizedinPracticeD3648.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:Z16
【国际标准分类号】:
【页数】:5P.;A4
【正文语种】:


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Product Code:SAE AS5969
Title:Fitting Assembly, Union, Axially Swaged, Hydraulic, 5080 psi
Issuing Committee:G-3, Aerospace Couplings, Fittings, Hose, Tubing Assemblies
Scope:Scope unavailable.【英文标准名称】:Aerospaceseries-Boltswithdoublehexagonhead,relievedshank,longthread,inheatresistingsteelFE-PM38(FV535)-Classification:1000MPa/550°C
【原文标准名称】:航空航天系列.FE-PM38(FV535)型耐热钢长螺纹减荷螺杆的双六角头螺栓.等级:1000MPa/550℃
【标准号】:BSEN3323-2009
【标准状态】:现行
【国别】:英国
【发布日期】:2009-03-31
【实施或试行日期】:2009-03-31
【发布单位】:英国标准学会(GB-BSI)
【起草单位】:BSI
【标准类型】:()
【标准水平】:()
【中文主题词】:航空航天运输;航空运输;十二角头;十二角螺钉;设计;名称与符号;尺寸;紧固件;精整;高温;材料;减荷螺杆;螺钉;航天运输;规范(验收);钢;表面粗糙度;试验温度;螺纹;公差(测量)
【英文主题词】:Aerospacetransport;Airtransport;Bihexagonalheads;Bihexagonalscrews;Design;Designations;Dimensions;Fasteners;Finishes;Hightemperature;Materials;Relievedshanks;Screws(bolts);Spacetransport;Specification(approval);Steels;Surfaceroughness;Testtemperatures;Threads;Tolerances(measurement)
【摘要】:ThisstandardspecifiesthecharacteristicsofdoublehexagonheadboltswithrelievedshankandlongthreadinheatresistingsteelFM-PM38,tensilestrengthclass1000MPaatroomtemperature.Themaximumtesttemperatureofthematerialis550°C.Theseboltsaretobeusedinaerospacefasteningsystems,ofpartsmadeintitanium,mainlystressedintension.
【中国标准分类号】:V20
【国际标准分类号】:49_030_20
【页数】:20P.;A4
【正文语种】:英语