NF B10-614-2007 天然石料试验方法.单轴压缩强度的测定
时间:2024-05-11 17:01:41 来源: 标准资料网 作者：标准资料网 阅读：8951
【英文标准名称】:Naturalstonetestmethods-Determinationofuniaxialcompressivestrength.
【原文标准名称】:天然石料试验方法.单轴压缩强度的测定
【标准号】:NFB10-614-2007
【标准状态】:现行
【国别】:法国
【发布日期】:2007-04-01
【实施或试行日期】:2007-04-05
【发布单位】:法国标准化协会(AFNOR)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:断裂强度;轴衬;电容性负载;压缩测试;抗压强度;结构;测定;解释;材料测试;方法;天然石料;符号;试样;测试
【英文主题词】:
【摘要】:
【中国标准分类号】:D53
【国际标准分类号】:73_020;91_100_15
【页数】:20P;A4
【正文语种】:其他
【英文标准名称】:StandardTestMethodforIsotopicAnalysisofUraniumHexafluoridebySingle-StandardGasSourceMassSpectrometerMethod
【原文标准名称】:用标准气体源质谱法进行六氟化铀的同位分析的标准试验方法
【标准号】:ASTMC1344-1997(2008)e1
【标准状态】:现行
【国别】:美国
【发布日期】:1997
【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】:C26.05
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:single-standardgassourcemassspectrometer;uraniumhexafluoride;Isotopicanalysis;Massspectrometry--nuclearmaterials/applications;Neirmassspectrometer;Single-standardgassourcemassspectrometer;Uraniumhexafluoride(UF6)
【摘要】:Uraniumhexafluorideisabasicmaterialusedtopreparenuclearreactorfuel.Tobesuitableforthispurpose,thematerialmustmeetthecriteriaforisotopiccomposition.ThistestmethodisdesignedtodeterminewhetherthematerialmeetstherequirementsdescribedinSpecificationsC787andC996.ASTMCommitteeC-26SafeguardsStatement:Thematerial(uraniumhexafluoride)towhichthistestmethodappliesissubjecttothenuclearsafeguardsregulationsgoverningitspossessionanduse.Theanalyticalprocedureinthistestmethodhasbeendesignatedastechnicallyacceptableforgeneratingsafeguardsaccountabilitydata.Whenusedinconjunctionwithappropriatecertifiedreferencematerials(CRMs),thisprocedurecandemonstratetraceabilitytothenationalmeasurementbase.However,adherencetothisproceduredoesnotautomaticallyguaranteeregulatoryacceptanceoftheregulatorysafeguardsmeasurements.Itremainsthesoleresponsibilityoftheuserofthistestmethodtoensurethatitsapplicationtosafeguardshastheapprovaloftheproperregulatoryauthorities.1.1Thistestmethodcoverstheisotopicanalysisofuraniumhexafluoride(UF6)andmaybeusedfortheentirerangeof235Uisotopiccompositionsforwhichstandardsareavailable.1.2ThistestmethodisapplicabletothedeterminationoftheisotopicrelationshipbetweentwoUF6samples.Iftheabundanceofaspecificisotopeofonesample(thestandard)isknown,itsabundanceintheothercanbedetermined.Thistestmethodisflexibleinthatthenumberoftimesagivenmaterialisadmittedtotheionsourcemaybeadjustedtotheminimumrequiredforaspecifiedprecisionlevel.1.3Thesensitivitywithwhichdifferencesbetweentwomaterialscanbedetecteddependsonthemeasuringsystemused,butratio-measuringdevicescangenerallyreadratio-of-molratiodifferencesassmallas0.0001.1.4ThevaluesstatedinSIunitsaretoberegardedasstandard.Nootherunitsofmeasurementareincludedinthisstandard.1.5Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.SpecifichazardsstatementsaregiveninSection7.
【中国标准分类号】:F46
【国际标准分类号】:
【页数】:5P.;A4
【正文语种】:英语
【英文标准名称】:StandardGuideforMeasuringthePresenceofPlanarOrganicCompoundsWhichInduceCYP1A,UsingReporterGeneTestSystems
【原文标准名称】:用指示器基因测试系统测定感应CYP1A的共面有机化合物的存在的标准指南
【标准号】:ASTME1853M-2004
【标准状态】:现行
【国别】:
【发布日期】:2004
【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】:E47.02
【标准类型】:(Guide)
【标准水平】:()
【中文主题词】:毒物;遗传学;有机化合物;测量;感应
【英文主题词】:Ah-receptor;benzo[a]pyrene;biomarker;carcinogenic;coplanarorganiccompound;CYP1A;dioxin;induction;P4501A;reportergenesystem;TCDD;toxic
【摘要】:ThecompoundsthatbindtotheAh-receptorandinduceCYP1Ahaveoftenbeenshowntobeeithermoretoxicorcarcinogenic,orboth,thanotherorganiccompounds.Dioxins,furans,andPCBshavebeenshowntobioconcentrateinexposedorganismsandbiomagnifyinthefoodweb(seeGuideE1023).Testingwithbirds,mammals,andfishspecieshasshownthatexposuretothesecompoundscanproducephysiological,reproductiveandhistopathologicaleffects(12,13).Concernforthepossiblecontaminationofwater,food,wildlife,soil,andaquaticsedimentfromthesecompoundshasledtotherequirementforanalyticalchemicalanalysesofagreatmanyenvironmentalsamples.UseofascreeningtoolsuchasthisHumanReporterGeneSystem(HRGS)willallowidentificationofsignificantlycontaminatedsamples.Thesemethodswillaidinthecost-effectiveseparationofhighprioritysamplesfromthosethatdonotrequirefurthercostlychemicalcharacterization.1.1ThisguidecoverstherecommendedguidelinesforperformingatestforpresenceoforganiccompoundsthatbindtotheAhReceptorandinducetheCYP1Alocusonthevertebratechromosome.Underappropriatetestconditions,inductionofCYP1Aisevidencethatthecellshavebeenexposedtooneormoreofthesexenobioticorganiccompoundsthatincludedioxins,furans,coplanarPCBs,andseveralpolycyclicaromatichydrocarbons(PAHs).DetectionofinductionhasbeenmadesimpleandrapidbythestableintegrationofthefireflyplasmidsuchthatAh-receptorbindingresultsintheproductionofluciferase.Luciferaseproductionisafunctionofboththepotencyofthecompound(s)andtheconcentration.ThistypeofHumanReporterGeneSystem(HRGS)hasshownconcentration-responserelationshipsusing2,3,7,8-TCDD,5coplanarPCBs,andseveralpolycyclicaromatichydrocarbons(PAHs)(1-3).Thisguidedescribestestconditionsunderwhichsolventextractsofenvironmentalsamples(water,tissue,soil,orsediments)maybetestedforthepresenceofCYP1A-inducingorganiccompounds.1.2Thetestprocedurespresentedinthisguidehavebeenpublishedpreviously(4,5)andestablishedasEPAMethod4425(6).Thesereferencesshouldbeconsultedtoobtaindetailsregardingtheconstructionandmaintenanceofthecellline,andtheresponseofthecellstovariousorganicsubstances.1.3Alllaboratoryhealthandsafetyproceduresshouldbefollowed.Thisincludestheuseofglasses,gloves,andotherprotectiveclothing,whenhandlingthereagents.Informationontoxicity,handlingproceduresandwasteproceduresshouldbereviewedpriortouseofallchemicals.1.4Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:A40
【国际标准分类号】:07_080
【页数】:9P.;A4
【正文语种】: