ASTM D2152-1995(2003) 用丙酮浸渍法测定挤压制聚氯乙烯管(PVC)和模制配件溶合度的标准试验方法
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【英文标准名称】:StandardTestMethodforAdequacyofFusionofExtrudedPoly(VinylChloride)(PVC)PipeandMoldedFittingsbyAcetoneImmersion
【原文标准名称】:用丙酮浸渍法测定挤压制聚氯乙烯管(PVC)和模制配件溶合度的标准试验方法
【标准号】:ASTMD2152-1995(2003)
【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】:F17.25
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:静压铸件;浸渍试验;塑料制品;管;塑料;配件;聚氯乙烯;建筑;塑料管;丙酮;熔化
【英文主题词】:acetone;fusion;pipe;poly(vinylchloride):PVC
【摘要】:ThistestmethodisapplicableonlyfordistinguishingbetweeninadequatelyfusedandadequatelyfusedPVC.ThedifferencebetweenthermallydegradedandadequatelyfusedPVCcannotbedetectedbythistestmethod.Acetoneimmersionisnotasubstituteforburst,impact,orotherphysicalorchemicaltestsonPVCpipeorfittingsandit,therefore,shallnotbeusedastheonlytestspecificationforpurchasingofPVCpipeandfittings.Thistestonlydetectsinadequatefusionanddoesnotdeterminetheover-allqualityofthePVCpipeorfittings.ThistestmethodisusefulindeterminingwhetherinadequatefusioncontributedtofailureofPVCpipeorfittingsinotherphysicalorchemicaltests,orinservice.ThistestmethodisusefulinevaluatingtheadequacyofPVCfusionobtainedinprocessormaterialstrials.Thistestmethoddeterminesadequacyoffusiononasingle,relativelysmallspecimen.Thistestmethodrequirestheuseofahazardousreagentwhichmustbeproperlyhandledanddisposed.Therefore,thistestmethodmaynotbecost-effectivetoemployasaroutinequalitycontroltest.1.1Thistestmethodcoversthedeterminationoftheadequacyoffusionofextrudedrigidpoly(vinylchloride)(PVC)pipeandmoldedfittingsasindicatedbyreactiontoimmersioninanhydrousacetone.1.2Thevaluesstatedininch-poundunitsaretoberegardedasthestandardexceptwhereinstrumentsarecalibratedinSIunits.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.SpecifichazardsstatementsaregiveninAnnexA1.
【中国标准分类号】:G31
【国际标准分类号】:23_040_20;23_040_45
【页数】:4P.;A4
【正文语种】:
【英文标准名称】:OutlineofInvesticationforDCRatedAttachmentPlugsandOutletDevicesIntendedforUseWithInformationTechnologyandTelecommunicationEquipmentInstalledinRestrictedAccessLocations
【原文标准名称】:与安装在受限出入区的信息技术和电信设备一同使用的额定直流插头和输出装置调查大纲
【标准号】:ULSUBJECT2695-2011
【标准状态】:现行
【国别】:美国
【发布日期】:2011-09-06
【实施或试行日期】:
【发布单位】:美国保险商实验所(US-UL)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:
【英文主题词】:
【摘要】:1.1ThisOutlinecoversattachmentplugsandoutletdevicesratedupto20amperesandupto600voltsdconly,intendedexclusivelyforusewithinformationtechnologyandtelecommunicationequipmentinstalledindoors,inrestrictedaccesslocations.1.2AttachmentplugsandoutletdevicescoveredbythisOutlineareintendedtobeinterconnectedbyservicepersonnelonly.1.3AttachmentplugsandoutletdevicescoveredinthisOutlineareintendedforassemblytocopperorcopperalloyconductors.1.4ThisOutlinealsocoversattachmentplugsmoldedontoflexiblecord.InadditiontotherequirementscontainedinthisOutline,anattachmentplugmoldedontoflexiblecordshallalsocomplywiththeapplicablerequirementscontainedintheStandardforCordSetsandPowerSupplyCords,UL817.1.5ThisOutlinedoesnotcover:a)Plugs,receptacles,andcableconnectors,ofthepinandsleevetypecoveredbytheStandardforPlugs,Receptacles,andCableConnectors,ofthePinandSleeveType,UL1682;b)Attachmentplugs,cordconnectors,andreceptaclescoveredbytheStandardforAttachmentPlugsandReceptacles,UL498;c)Singleandmulti-poleconnectors,whichmayinclude3ormorepilotcontacts,intendedforconnectiontocopperconductors,foruseindata,signal,controlandpowerapplicationswithinandbetweenelectricalequipment,whereexposed,thatarecoveredbytheStandardforComponentConnectorsforUseinData,Signal,ControlandPowerApplications,UL1977;d)DevicesconsistingofwiringterminalsandsupportingblocksintendedfortheconnectionofwiringthatarecoveredbytheStandardforTerminalBlocks,UL1059;e)DevicessuchasmodularjacksandplugsthatareintendedforusewithtelecommunicationsnetworksthatarecoveredbytheStandardforInformationTechnologyEquipmentSafety–Part1:GeneralRequirements,UL60950-1,andtheStandardforCommunications-CircuitAccessories,UL1863;f)DevicessuchaswireconnectorsandsolderinglugscoveredbytheStandardforWireConnectors,UL486A-486B;theStandardforSplicingWireConnectors,UL486C;ortheStandardforEquipmentWiringTerminalsforUsewithAluminumand/orCopperConductors,UL486E;org)Devicessuchasquick-connectterminalscoveredbytheStandardforElectricalQuick-ConnectTerminals,UL310.
【中国标准分类号】:K30
【国际标准分类号】:
【页数】:32P.;A4
【正文语种】:英语
【英文标准名称】:Informationtechnology-JPEG2000imagecodingsystem:MotionJPEG2000
【原文标准名称】:信息技术.JPEG2000图像编码系统:影视JPEG2000
【标准号】:ISO/IEC15444-3-2007
【标准状态】:现行
【国别】:国际
【发布日期】:2007-05-01
【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/SC29
【标准类型】:()
【标准水平】:()
【中文主题词】:音频的;多媒体数字信号编解码器;编码(数据转换);通信设备;电信设备;压缩;计算机制图;概念;数据压缩;数据处理;定义;数字数据;显示器;文档结构;图形数据处理;图像处理;图像系统;图像;信息技术;联合图像专家组;影视;移动画面;轮廓;终端;测试;验证;微波
【英文主题词】:Audio;Codec;Coding(dataconversion);Communicationequipment;Communicationservice;Compression;Computergraphics;Concepts;Datacompression;Dataprocessing;Definition;Definitions;Digitaldata;Display;Filestructure;Graphicdataprocessing;Imageprocessing;Imagesystems;Images;Informationtechnology;JPEG;Motion;Movingpictures;Profiles;Terminals;Testing;Verification;Wavelets
【摘要】:ThisRecommendation|InternationalStandardspecifiestheuseofthewavelet-basedJPEG2000codecforthecodinganddisplayoftimedsequencesofimages(motionsequences),possiblycombinedwithaudio,andcomposedintoanoverallpresentation.InthisRecommendation|InternationalStandard,afileformatisdefined,andguidelinesfortheuseoftheJPEG2000codecformotionsequencesaresupplied.ThisRecommendation|InternationalStandardalsospecifiesprofilesandtheframework,concepts,methodologyfortestingandthecriteriatobeachievedtoclaimcompliancetothisRecommendation|InternationalStandard.
【中国标准分类号】:L71
【国际标准分类号】:35_040
【页数】:38P.;A4
【正文语种】:英语