DIN ETS 300328/A1-1998 无线电设备和系统.宽带数据传输系统.在2,4GHz-ISM频带工作,用频带扩展调制技术的数据传输设备的技术特性值和检验条件

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下一篇: DIN EN 165000-5-1998 薄膜集成电路和混合集成电路.第5部分:合格认可的程序

【英文标准名称】:StandardSpecificationforPolytetrafluoroethylene(PTFE)ResinProducedFromDispersion
【原文标准名称】:由分散体制得的聚四氟乙烯(PTFE)树脂标准规范
【标准号】:ASTMD4895-2010
【标准状态】:现行
【国别】:美国
【发布日期】:2010
【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】:D20.15
【标准类型】:(Specification)
【标准水平】:()
【中文主题词】:
【英文主题词】:coagulateddispersionpolytetrafluoroethylene;fluoropolymers;polytetrafluoroethylene;PTFE;PasteextrudedPTFE;Plastics--specifications;Pressuretesting--plastics;Specimenpreparation(fortesting)--plastics;Stretchingvoidindex(SVI);PTFE(po
【摘要】:1.1Thisspecificationcoversdry-powderresinsofpolytetrafluoroethylene(PTFE)thathavebeenpreparedfromdispersionsofPTFEbymanufacturingtechniquesthatinvolvecontrolledcoagulationofthedispersion.Theseresinsaregenerallyknownasx201C;fine-powderx201D;resinsorx201C;coagulated-dispersionpowderx201D;resins.Theconversionoftheseresinstofinishedproductsnormallyinvolvesaprocesscalledx201C;pasteextrusion,x201D;andsometimesinvolvesformativeprocessessuchascalendering.Avolatileliquidispresentasaprocessingaidduringtheseformativestagesofconversion,andissubsequentlyremovedduringthefinishingstagesofconversion.ThesePTFEresinsarehomopolymersoftetrafluoroethylene,or,insomecases,modifiedhomopolymerscontainingnotmorethan1%byweightofotherfluoromonomers.Theusualmethodsofprocessingthermoplasticsgenerallyarenotapplicabletothesematerialsbecauseoftheirviscoelasticproperties.ThematerialscoveredhereindonotincludemixturesofPTFEwithadditivessuchascolors,fillers,orplasticizers;nordotheyincludereprocessedorregroundresinoranyfabricatedarticlesbecausethepropertiesofsuchmaterialshavebeenirreversiblychangedwhentheywerefibrillatedorsintered.Themethodsandpropertiesincludedarethoserequiredtoidentifythevariousresins.Anadditionalprocedureisprovidedintheappendixforfurthercharacterizationoftheresins.1.2ThevaluesstatedinSIunitsasdetailedinaretoberegardedasstandard.Thevaluesgiveninparenthesesareforinformationonly.1.3ThefollowingsafetyhazardscaveatpertainsonlytotheSpecimenPreparationSection,Section9,andtheTestMethodsSection,Section10,ofthisspecification:Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.SeeWarningnotein9.1.1foraspecifichazardsstatement.Note18212;InformationinthisspecificationistechnicallyequivalenttorelatedinformationinISO12086-1andISO12086-2.
【中国标准分类号】:G32
【国际标准分类号】:83_080_10
【页数】:14P.;A4
【正文语种】:英语


【英文标准名称】:Admixturesforconcrete,mortarandgrout-Part3:Admixturesformasonrymortar-Definitions,requirements,conformityandmarkingandlabelling;GermanversionEN934-3:2009
【原文标准名称】:混凝土、砂浆和水泥浆添加剂.第3部分:砌筑砂浆添加剂.定义、要求、一致性、标记和标签.德文版本EN934-3-2009
【标准号】:DINEN934-3-2010
【标准状态】:作废
【国别】:德国
【发布日期】:2010-01
【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】:添加剂;引气剂;CE标记;水泥胶结;混凝土化合物;混凝土外加剂;混凝土添充料;混凝土施工;混凝土;冷凝器;一致性;一致性测试;施工材料;装配产品;定义;名称与符号;灌浆砂浆;文字书写;液体;处理;圬工灰浆;灰浆;增塑外加剂;粉状的;生产控制;性能;质量控制;质量监督;混凝土缓凝剂;抽样方法;规范;规范(验收);监督(认可)
【英文主题词】:Additives;Air-entrainingadmixtures;CEmarking;Cementbonded;Concreteaddition;Concreteadmixtures;Concreteaggregates;Concretework;Concretes;Condensers;Conformity;Conformitytesting;Constructionmaterials;Constructionalproducts;Definitions;Designations;Groutingmortar;Letterings;Liquid;Marking;Masonrymortars;Mortars;Plasticizingadmixtures;Powdery;Productioncontrol;Properties;Qualitycontrol;Qualitysurveillance;Retardingconcreteadmixtures;Samplingmethods;Specification;Specification(approval);Surveillance(approval)
【摘要】:ThisEuropeanStandarddefinesandspecifiestherequirementsandconformitycriteriaforadmixturesforuseincementbasedmasonrymortar.Itcoverstwotypesofadmixtures,longtermretardingandairentraining/plasticizingwhichareusedinready-mixedandsitemademasonrymortars.
【中国标准分类号】:Q13
【国际标准分类号】:91_100_30
【页数】:18P.;A4
【正文语种】:英语