【英文标准名称】:Plastics-Styrene/acrylonitrilecopolymers-Determinationofresidualacrylonitrilemonomercontent-Gaschromatographymethod
【原文标准名称】:塑料苯乙烯/丙烯腈共聚物剩余的丙烯腈单体含量的测定气相色谱法
【标准号】:ISO4581-1994
【标准状态】:现行
【国别】:国际
【发布日期】:1994-08
【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/TC61
【标准类型】:()
【标准水平】:()
【中文主题词】:气相色谱法;试验;化学分析和试验;塑料;含量测定;丙烯腈;共聚物;苯乙烯;单体
【英文主题词】:Acrylonitrile;Chemicalanalysisandtesting;Copolymers;Determinationofcontent;Gaschromatography;Monomers;Plastics;Styrene;Testing
【摘要】:Theprincipleofthemethodspecifiedisdissolvingatestportionindimethylformamideandinjectingasmallvolumeofthesolutionintoagaschromatographequippedwithflameionizationdetectortoseparateanddetectthevolatilecomponents.Thesolventcontainsaknownamountofpropionitrileoracetonitrileasaninternalstandardforquantitativeevaluation.Withthismethod,alowerdetectionlimitoftheorderof3ppmofacrylonitrileinthecopolymermaybeexpected.Toobtainalowerdetectionlimitoftheorderof0,3ppmto0,4ppm,analternativemethodisspecifiedinannexA.
【中国标准分类号】:G31
【国际标准分类号】:83_080_20
【页数】:8P.;A4
【正文语种】:英语


【英文标准名称】:Informationtechnology-Radiofrequencyidentificationforitemmanagement-Applicationrequirementsprofiles
【原文标准名称】:信息技术.项目管理用射频识别.应用要求轮廓
【标准号】:ISO/IECTR18001-2004
【标准状态】:现行
【国别】:国际
【发布日期】:2004-10
【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/IECJTC1/SC31
【标准类型】:()
【标准水平】:()
【中文主题词】:使用;交替使用性;射频识别;规范(验收);高频;射频;频率;信息技术;功能性;运行范围;识别;标识符;存储;极高频;轮廓;传播学
【英文主题词】:Applications;Communication;Extra-highfrequencies;Frequencies;Functionality;Highfrequencies;Identification;Informationtechnology;Interoperability;Memory;Operationranges;Profile;RadioFrequencyIdentification;Radiofrequencyidentifications;Radiofrequencies;RFID;Specification(approval);Tags(dataprocessing)
【摘要】:ThisTechnicalReportprovides:-Theresultofthreesurveysidentifyingtheapplicationsforradiofrequencyidentification(RFID)inanitemmanagementenvironment,andtheresultantclassificationoftheseapplicationsbasedonvariousoperationalparameters,includingoperatingrangeandmemorysize.-AnexplanationofsomeoftheissuesassociatedwiththeparametersofdistanceandnumberoftagswithinanRFIDinterrogator’sfield-of-view.-AmeansbywhichclassificationofRFtagsmaybeaccomplishedbasedontheapplicationrequirementsdefinedinthesurveyresults.-Recommendationsforareasofstandardizationtotheparentcommittee(ISO/IECJTC1/SC31/WG4)basedontheresultsofthesesurveys.
【中国标准分类号】:L71
【国际标准分类号】:35_040
【页数】:89P;A4
【正文语种】:英语