【英文标准名称】:Pulps-Determinationoflimitingviscositynumberincupri-ethylenediamine(CED)solution
【原文标准名称】:纸浆.铜乙二氨溶液中特性粘度值的测定
【标准号】:ISO5351-2004
【标准状态】:作废
【国别】:国际
【发布日期】:2004-06
【实施或试行日期】:
【发布单位】:国际标准化组织(IX-ISO)
【起草单位】:ISO/TC6
【标准类型】:()
【标准水平】:()
【中文主题词】:粘度计;1,2-乙二胺;稀释;粘度;纤维素;校正;测定;溶液;纸浆;实验室器皿;试验;铜轴承;特性粘度;数学计算;定义
【英文主题词】:Calibration;Cellulose;Copper-bearing;Definitions;Determination;Dilute;Ethylenediamine;Laboratoryware;Limitviscosity;Mathematicalcalculations;Pulp;Solutions;Testing;Tests;Viscometers;Viscosity
【摘要】:ThisInternationalStandardspecifiesamethodwhichyieldsanumberthatisanestimateofthelimitingviscositynumberofpulpinadilutecupri-ethylenediamine(CED)solution.ThismethodisprimarilyapplicabletoCED-solublesamplesofbleachedchemicalpulpsbutcanalsobeappliedtoanykindofpulpthatdissolvescompletelyinCEDsolution.NOTE1Theresultscanbeusedtoestimatetheextentofcellulosedegradationcausedbycookingorbleaching.Resultsobtainedwithsamplescontainingappreciableamountsofsubstancesotherthancellulosemustbeinterpretedwithcaution,however.NOTE2Inthestrictestsense,viscositymeasurementproceduresareapplicableonlytothepolysaccharidefractionofthesample.Thisnotwithstanding,viscositymeasurementcanusuallybeusedtoobtainaresultonunbleachedpulpshavinglignincontentsofupto4%,becausemostofthesepulpscanbesuccessfullydissolvedinCED.However,thesimplefactthatanunbleachedpulpcanbedissolvedinCEDdoesnotmeantheresultsarevalid.Insummary,viscosityresultsforpulpscontainingmorethan0,5%ofligninarenotacceptablefortechnicalspecificationpurposes.
【中国标准分类号】:Y30
【国际标准分类号】:85_040
【页数】:17P.;A4
【正文语种】:英语
【英文标准名称】:StandardPracticeforInstallationandUseofReflectiveInsulationinBuildingConstructions
【原文标准名称】:建筑结构中反射隔热的装置及应用标准实施规程
【标准号】:ASTMC727-2001(2007)e1
【标准状态】:现行
【国别】:
【发布日期】:2001
【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】:C16.21
【标准类型】:(Practice)
【标准水平】:()
【中文主题词】:建筑物;隔热
【英文主题词】:buildingconstructions;enclosedairspace;insulationsystem;lowemittance;metallicfoil;reflectiveinsulation;thermalinsulatingmaterials
【摘要】:Thispracticerecognizesthateffectiveness,safety,anddurabilityofreflectiveinsulationdependsnotonlyonthequalityoftheinsulatingmaterials,butalsoontheirproperinstallation.Improperinstallationofinsulationcanreduceitsthermaleffectiveness,causefirerisksandotherunsafeconditions,andpromotedeteriorationofthestructureinwhichitisinstalled.Specifichazardsthatcanresultfromimproperinstallationincludefirescausedby(1)heatbuild-upinrecessedlightingfixtures,(2)deteriorationorfailureofelectricalwiringcomponents,andheatbuild-upresultingfromovercurrentprotectiondevicesincorrectlymatchedtowiring;or(3)deteriorationinwoodstructuresandpaintfailureduetomoistureaccumulation.Thispracticeprovidesrecommendationsfortheinstallationofreflectiveinsulationinasafeandeffectivemanner.Actualconditionsinexistingbuildingsmayvarygreatlyandinsomecasesadditionalcareshouldbetakentoensuresafeandeffectiveinstallation.Thispracticepresentsrequirementsthataregeneralinnatureandconsideredpractical.Theyarenotintendedasspecificrecommendations.Theusershouldconsultmanufacturerforrecommendedapplications.1.1Thispracticehasbeenpreparedforusebythedesigner,specifier,andinstallerofreflectiveinsulationforuseinbuildingconstruction.Thescopeislimitedtorecommendationsrelativetotheuseandinstallationofthermalinsulationconsistingofoneormoresurfaces,havinganemittanceof0.1orlesssuchasmetallicfoilormetallicdepositsunmountedormountedonsubstratesandfacingenclosedairspaces.ThereflectiveinsulationcoveredbythispracticemustmeettherequirementsofSpecificationC1224.1.2Thispracticecoverstheinstallationprocessfrompre-installationinspectionthroughpost-installationprocedure.Itdoesnotcovertheproductionoftheinsulationmaterials.1.3Thispracticeisnotintendedtoreplacethemanufacturer''sinstallationinstructions,butshallbeusedinconjunctionwithsuchinstructions.Thispracticeisnotintendedtosupercedelocal,state,orfederalcodes.1.4Thispracticeassumesthattheinstallerpossessesagoodworkingknowledgeoftheapplicablecodesandregulations,safetypractices,tools,equipment,andmethodsnecessaryfortheinstallationofthermalinsulationmaterials.Italsoassumesthattheinstallerunderstandsthefundamentalsofconstructionthataffecttheinstallationofinsulation.1.5Thevaluesgivenininch-poundunitsaretoberegardedasstandard.TheSIunitsinparenthesesareforinformationonly.1.6Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:Q25
【国际标准分类号】:91_120_10
【页数】:3P.;A4
【正文语种】:
基本信息
| 标准名称： | 电子器件详细规范 半导体集成电路CF747型通用双运算放大器(可供认证用) |
| 中标分类： |
电子元器件与信息技术 >>
微电路 >>
半导体集成电路 |
| 替代情况： | 调整为SJ/T 10935-1996 |
| 发布日期： | 1900-01-01 |
| 实施日期： | 1989-02-01 |
| 首发日期： | 1900-01-01 |
| 作废日期： | 1900-01-01 |
| 出版日期： | 1900-01-01 |
| 页数： | 19页 |
适用范围
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所属分类： 电子元器件与信息技术 微电路 半导体集成电路