JJF 1335-1990 800～2000 纳米光谱反射比副基准操作技术规范
时间:2024-05-03 20:42:27 来源: 标准资料网 作者：标准资料网 阅读：8531
基本信息
| 标准名称： | 800～2000 纳米光谱反射比副基准操作技术规范 |
| 英文名称： | O.T.N of Secondary Standard for Spectral Reflectance in the Range of 800～2000nm |
| 中标分类： |
综合 >>
计量 >>
光学计量 |
| 替代情况： | 调整(转号)JJG 1335-1990 |
| 发布日期： | |
| 实施日期： | 2002-10-01 |
| 首发日期： | |
| 作废日期： | |
| 出版日期： | |
| 页数： | 5页 |
适用范围
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前言
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引用标准
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所属分类： 综合 计量 光学计量
【英文标准名称】:Flexibleinsulatingsleeving-Part3:Specificationsforindividualtypesofsleeving-Sheet165:Extrudedpolyolefin,flameretarded,limitedfirehazardsleeving(IEC60684-3-165:2004);GermanversionEN60684-3-165:2004
【原文标准名称】:绝缘软套管.第3部分:各种型号套管的规范.活页165:阻燃型挤压聚烯烃有限火险套管
【标准号】:DINEN60684-3-165-2005
【标准状态】:现行
【国别】:德国
【发布日期】:2005-04
【实施或试行日期】:2005-04-01
【发布单位】:德国标准化学会(DIN)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:软管;绝缘材料;绝缘管;尺寸;聚烯烃;特性;耐力;击穿电压;挤压的;火焰表面传播;阻燃剂;电绝缘材料;规范(验收);合格;电气工程;抗燃的
【英文主题词】:
【摘要】:
【中国标准分类号】:K15
【国际标准分类号】:29_035_20
【页数】:13P;A4
【正文语种】:德语
【英文标准名称】:StandardGuideforSelectionofTestMethodstoDetermineRateofFluidPermeationThroughGeomembranesforSpecificApplications
【原文标准名称】:透过特殊用途土工薄膜的流体渗透率测试方法选择的标准指南
【标准号】:ASTMD5886-1995(2006)
【标准状态】:现行
【国别】:
【发布日期】:1995
【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】:D35.10
【标准类型】:(Guide)
【标准水平】:()
【中文主题词】:漫延气体;水库;渗透率;处理;废弃材料;蒸气;可变形薄膜衬垫;透过土工薄膜的液体渗透率;离子传输;有机物蒸气传输;聚合物土工薄膜;水蒸气传输;浸泡;浸出;物障;导则
【英文主题词】:barriers;diffusionofgasesandvapors;flexiblemembraneliners(FMLs);gastransmission;leachate;organicvaportransmission;permeability;polymericgeomembranes;reservoirs;transportofchemicalspecies;transportofions;wastedisposal;
【摘要】:Theprincipalcharacteristicofgeomembranesistheirintrinsicallylowpermeabilitytoabroadrangeofgases,vapors,andliquids,bothassingle-componentfluidsandascomplexmixturesofmanyconstituents.Aslowpermeablematerials,geomembranesarebeingusedinawiderangeofengineeringapplicationsingeotechnical,environmental,andtransportationareasasbarrierstocontrolthemigrationofmobilefluidsandtheirconstituents.Therangeofpotentialpermeantsisbroadandtheserviceconditionscandiffergreatly.Thisguideshowsuserstestmethodsavailablefordeterminingthepermeabilityofgeomembranestovariouspermeants.Thetransmissionofvariousspeciesthroughageomembraneissubjecttomanyfactorsthatmustbeassessedinordertobeabletopredictitseffectivenessforaspecificservice.Permeabilitymeasurementsareaffectedbytestconditions,andmeasurementsmadebyonemethodcannotbetranslatedfromoneapplicationtoanother.Awidevarietyofpermeabilitytestshavebeendevisedtomeasurethepermeabilityofpolymericmaterials;however,onlyalimitednumberoftheseprocedureshavebeenappliedtogeomembranes.Testconditionsandproceduresshouldbeselectedtoreflectactualservicerequirementsascloselyaspossible.Itshouldbenotedthatfieldconditionsmaybedifficulttomodelormaintaininthelaboratory.Thismayimpactapparentperformanceofgeomembranesamples.Thisguidediscussesthemechanismofpermeationofmobilechemicalspeciesthroughgeomembranesandthepermeabilityteststhatarerelevanttovarioustypesofapplicationsandpermeatingspecies.Specifictestsforthepermeabilityofgeomembranestobothsingle-componentfluidsandmulticomponentfluidsthatcontainavarietyofpermeantsaredescribedanddiscussed.1.1Thisguidecoversselectingoneormoreappropriatetestmethodstoassessthepermeabilityofallcandidategeomembranesforaproposedspecificapplicationtovariouspermeants.Thewidelydifferentusesofgeomembranesasbarrierstothetransportandmigrationofdifferentgases,vapors,andliquidsunderdifferentserviceconditionsrequiredeterminationsofpermeabilitybytestmethodsthatrelatetoandsimulatetheservice.Geomembranesarenonporoushomogeneousmaterialsthatarepermeableinvaryingdegreestogases,vapors,andliquidsonamolecularscaleinathree-stepprocess(1)bydissolutioninorabsorptionbythegeomembraneontheupstreamside,(2)diffusionthroughthegeomembrane,and(3)desorptiononthedownstreamsideofthebarrier.1.2Therateoftransmissionofagivenchemicalspecies,whetherasasinglepermeantorinmixtures,isdrivenbyitschemicalpotentialorinpracticaltermsbyitsconcentrationgradientacrossthegeomembrane.Variousmethodstoassessthepermeabilityofgeomembranestosinglecomponentpermeants,suchasindividualgases,vapors,andliquidsarereferencedandbrieflydescribed.1.3Varioustestmethodsforthemeasurementofpermeationandtransmissionthroughgeomembranesofindividualspeciesincomplexmixturessuchaswasteliquidsarediscussed.Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:P85;G33
【国际标准分类号】:13_060_30;17_120_01
【页数】:8P.;A4
【正文语种】: