ANSI B11.10-1990 机床.金属锯床的制造、维护和使用的安全要求

上一篇: BS 903 Pt.A59-1990 橡胶的物理试验.第A59部分:塑度计的使用方法
下一篇: ISO/TR 4918-1990 铺地织物磨损的测定轮椅试验

【英文标准名称】:StandardGuideforDeterminationofNeptunium-237inSoil
【原文标准名称】:土壤中镎237检测的标准指南
【标准号】:ASTMC1475-2005(2010)e1
【标准状态】:现行
【国别】:美国
【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】:C26.05
【标准类型】:(Guide)
【标准水平】:()
【中文主题词】:
【英文主题词】:alphaspectroscopy;americium-243;betacounting;extractionchromatography;gamma-rayspectroscopy;neptunium-239;neptunium-237determination;soilanalysis;Soil(radioactiveanalysis);Neptunium-237
【摘要】:Asoilsamplingandanalysisprogramprovidesadirectmeansofdeterminingtheconcentrationanddistributionofradionuclidesinsoil.Thepresenceandextentofneptunium-237isofparticularinterestbecauseitisoneofthemoremobiletransuranicsintermsofmigrationandplantuptake.Sincesoilisanintegratorandareservoironlong-livedradionuclides,andservesasanintermediaryinseveralpathwaysofpotentialimportancetohumans,knowledgeoftheconcentrationofneptunium-237insoilisessential.1.1Thisguidecoversthedeterminationofneptunium-237insoilbymeansofradiochemicalseparationsandalphaspectrometry.Thisguideprovidesoptionsintheselectionofsamplepreparation,separation,andmeasurement.Althoughneptunium-237isnotacomponentofglobalfallout,itisaproductofproductionreactorsandspentfuelprocessing.ThisguideisdesignedforanalysisoftengramsofsoilpreviouslycollectedandtreatedinaccordancewithPracticesC998andC999.Larger-sizesamplesofenvironmentalsoilmayalsobeanalyzed,aslongastheconcentrationsofinterferencessuchasuraniumandthoriumareatornearenvironmentalconcentrations.Dependingonthechoiceofasampledissolutionmethod,allchemicalformsofneptuniummaynotbecompletelysolubilized.Thisguideshouldallowthedeterminationofneptunium-237concentrationsfromsubbecquerelpergramlevelstoapplicablestandardsdependingoncounttime,samplesize,detectorefficiency,background,andtraceryield.1.2ThevaluesstatedinSIunitsaretoberegardedasstandard.Nootherunitsofmeasurementareincludedinthisstandard.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.SpecificprecautionarystatementsaregiveninSection8.
【中国标准分类号】:Z33
【国际标准分类号】:13_080_10
【页数】:4P.;A4
【正文语种】:英语


【英文标准名称】:Specificationforpotentiometersofassessedquality:genericdataandmethodsoftest
【原文标准名称】:经质量评定的电位器规范.通用数据和试验方法
【标准号】:BS9130-1972
【标准状态】:作废
【国别】:英国
【发布日期】:1972-02-29
【实施或试行日期】:1972-02-29
【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】:额定电压;试验条件;试验设备;作标记;性能试验;电阻测量;质量保证体系;规范(验收);机械试验;资格鉴定;电位器;扭矩;电负荷循环试验;电子设备及元件;高温试验;介电强度试验;衰减;工作环境;轴衬(机械元件);电路;认可试验;质量评估;尺寸测量;电气试验;电气元件;额定值;检验;开关;耐久试验;环境试验;轴(旋转);电学测量;可变电阻器;详细规范;尺寸;接触电阻;抽样方法;损耗因数;额定电阻;电失真;准确度;定义;电阻器;电阻的温度系数;电绝缘
【英文主题词】:electronicequipmentandcomponents;inspection;attenuation;approvaltesting;testequipment;electricaltesting;contactresistance;bushes(mechanicalcomponents);dimensionalmeasurement;electricalcomponents;ratedvoltage;assessedquality;dielectric-strengthtests;switches;specification(approval);resistancemeasurement;definitions;electricalmeasurement;marking;dissipationfactor;ratings;torque;samplingmethods;ratedresistance;variableresistors;resistors;mechanicaltesting;qualificationapproval;qualityassurancesystems;temperaturecoefficientofresistance;electricloadcyclingtests;shafts(rotating);electricdistortion;environment(working);detailspecification;potentiometers(resistors);dimensions;electricalinsulation;endurancetesting;performancetesting;circuits;environmentaltesting;testingconditions;high-temperaturetesting;accuracy
【摘要】:Generalmatters,terminology,testprocedures(electrical,mechanical,environmentalandendurance),generalrulesfordraftingdetailspecifications.
【中国标准分类号】:L14
【国际标准分类号】:31_040_20
【页数】:72P.;A4
【正文语种】:英语