DIN 25482-2 Bb.1-2000 电离辐射测量的检测极限和判断域.第2部分:不考虑试样处理影响的分光光度测量法计数测量.说明和示例

作者:标准资料网 时间:2024-05-04 01:08:16   浏览:9983   来源:标准资料网
下载地址: 点击此处下载
【英文标准名称】:Detectionlimitanddecisionthresholdforionizingradiationmeasurements-Part2:Countingmeasurementsbyspectrometry,neglectingtheinfluenceofsampletreatment;commentsandexamples
【原文标准名称】:电离辐射测量的检测极限和判断域.第2部分:不考虑试样处理影响的分光光度测量法计数测量.说明和示例
【标准号】:DIN25482-2Bb.1-2000
【标准状态】:作废
【国别】:德国
【发布日期】:2000-09
【实施或试行日期】:
【发布单位】:德国标准化学会(DE-DIN)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:辐射测量;额定值;数学计算;核辐射;辐射;符号;测量技术;光谱测定法;评定;测量;检定极限;检测极限;置信区间;放射性;验证;核技术;检测
【英文主题词】:Confidenceintervals;Detection;Detectionlimit;Detectionlimits;Evaluations;Mathematicalcalculations;Measurement;Measuringtechniques;Nuclearradiation;Nucleartechnology;Radiation;Radiationmeasurement;Radioactivity;Ratings;Spectrometry;Symbols;Verification
【摘要】:
【中国标准分类号】:F70
【国际标准分类号】:17_240
【页数】:18P.;A4
【正文语种】:德语


下载地址: 点击此处下载
【英文标准名称】:TestMethodforCompressiveStrengthofThermalInsulatingorFinishingCement
【原文标准名称】:隔热水泥或饰面水泥的抗压强度的试验方法
【标准号】:ASTMC354-1990
【标准状态】:作废
【国别】:美国
【发布日期】:1990
【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】:ASTM
【标准类型】:()
【标准水平】:()
【中文主题词】:水泥;抗压强度;试验;隔热
【英文主题词】:cements;testing;compressivestrength;thermalinsulation
【摘要】:
【中国标准分类号】:Q11
【国际标准分类号】:91_100_10
【页数】:2P;A4
【正文语种】:英语


【英文标准名称】:StandardTestMethodforResistanceofZipperstoSaltSpray(Fog)
【原文标准名称】:拉链耐盐雾(雾)能力的标准试验方法
【标准号】:ASTMD2059/D2059M-2003(2009)
【标准状态】:现行
【国别】:
【发布日期】:2003
【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】:D13.54
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:corrosion;zipper;Acceleratedaging/testing--saltspray(fog)testing;Corrosion--salt-spray(fog)testing;Saltspray(fog)testing;Zippers
【摘要】:Theresistanceofazippertoavarietyofsalineandnon-salineenvironmentscanbeestimatedfromtheamountandnatureofcorrosionproductsandtheireffectonoperability.Resultsofexposuretothesaltsprayaremerelyindicativeofthereactiontoothercorrosiveconditions.Whiletheresultscannotberelatedpreciselytoagivenlengthofexposureinaspecificatmosphere,theyareusefulformeasuringrelativeperformanceunderprescribedconditionsforcontrollingamanufacturingprocess,andformeasuringtheeffectivenessofprotectivecoatings.TestMethodD2059forthedeterminationoftheresistanceofzipperstosaltsprayisconsideredsatisfactoryforacceptancetestingofcommercialshipmentsofzippersbecausethetestmethodisusedextensivelyinthetradeforacceptancetesting.Iftherearedifferencesofpracticalsignificancebetweenreportedtestresultsfortwolaboratories(ormore),comparativetestshouldbeperformedtodetermineifthereisastatisticalbiasbetweenthem,usingcompetentstatisticalassistance.Asaminimum,thetestsamplesshouldbeusedthatareashomogeneousaspossible,thataredrawnfromthematerialfromwhichthedisparatetestresultswereobtained,andthatarerandomlyassignedinequalnumberstoeachlaboratoryfortesting.Othermaterialswithestablishedtestvaluesmaybeusedforthispurpose.Thetestresultsfromthetwolaboratoriesshouldbecomparedusingastatisticaltestforunpaireddata,ataprobabilitylevelchosenpriortothetestingseries.Ifabiasisfound,eitheritscausemustbefoundandcorrected,orfuturetestresultsmustbeadjustedinconsiderationoftheknownbias.Themethod(s)inthestandardalongwiththoseinTestMethodsD2051,D2052,D2053,D2054,D2057,D2058,D2060,D2061,andD2062areacollectionofproventestmethods.Theycanbeusedasaidsintheevaluationofzipperswithouttheneedforathoroughknowledgeofzippers.Theenumeratedtestmethodsdonotprovidefortheevaluationofallzipperproperties.Besidesthosepropertiesmeasuredbymeansoftheenumeratedtestmethodsthereareotherpropertiesthatmaybeimportantforthesatisfactoryperformanceofazipper.Testmethodsformeasuringthosepropertieshavenotbeenpublishedeitherbecausenopracticalmethodshaveyetbeendevelopedorbecauseavalidevaluationoftheinformationresultingfromexistingunpublishedmethodsrequiresanintimateandthoroughknowledgeofzippers.1.1Thistestmethodcoversthedeterminationoftheresistanceofalltypesofzipperstocorrosionandtheirabilitytofunctionproperlyafterexposureofspecifieddurationinaprescribedsaltspray.1.2ThevaluesstatedineitherSIunitsorinch-poundunitsaretoberegardedseparatelyasstandard.Thevaluesstatedineachsystemmaynotbeexactequivalents;therefore,eachsystemshallbeusedindependentlyoftheother.Combiningvaluesfromthetwosystemsmayresultinnon-conformancewiththestandard.1.3Thisstandarddoesnotpurporttoaddressallofthes......
【中国标准分类号】:Y76
【国际标准分类号】:61_040
【页数】:3P.;A4
【正文语种】: