【英文标准名称】:Handwheels,disktype
【原文标准名称】:盘形手轮
【标准号】:DIN3670-2000
【标准状态】:现行
【国别】:德国
【发布日期】:2000-03
【实施或试行日期】:
【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】:轮辋;轻金属;突台;圆盘;操纵装置;手轮;机器;工具;仪器;尺寸;材料;名称与符号;铝;设计
【英文主题词】:lightmetals;disks;machines;dimensions;operatingdevices;bosses;handwheels;materials;tools;designations;design;instruments;aluminium;wheelrims
【摘要】:Therequirementsspecifiesinthisstandardapplytodisctypehandwheelstobemostlyonmachinesandequipment.
【中国标准分类号】:J27
【国际标准分类号】:21_180
【页数】:4P;A4
【正文语种】:德语


【英文标准名称】:Metalliccoatings-Porositytests-Porosityingoldorpalladiumcoatingsbysulfurousacid/sulfurdioxidevapour
【原文标准名称】:金属涂层孔隙率检测用硫酸/二氧化硫蒸汽法检测基体上金或钯涂层的孔隙率
【标准号】:ISO15721-2001
【标准状态】:现行
【国别】:国际
【发布日期】:2001-04
【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/TC107
【标准类型】:()
【标准水平】:()
【中文主题词】:钯;孔容;金覆层;破坏试验;定义;孔隙率;空隙率试验;防腐蚀;缺陷;金属覆层;表面性质;腐蚀;试验;覆层
【英文主题词】:Coatings;Corrosion;Corrosionprotection;Defects;Definitions;Destructivetesting;Goldcoatings;Metalcoatings;Palladium;Porevolume;Porosity;Porositytest;Surfaceproperties;Testing
【摘要】:Thistestmethodcoversequipmentandmethodsfordeterminingtheporosityofgoldorpalladiumcoatings,particularlyelectrodepositsandcladmetalsusedonelectricalcontacts.Itisdesignedtoshowwhethertheporositylevelislessthanorgreaterthanagivenvaluewhichbyexperienceisconsideredbytheusertobeacceptablefortheintendedapplication.Thisporositytestinvolvescorrosionreactionsinwhichtheproductsdelineatedefectsitesincoatings.Sincethechemistryandpropertiesoftheseproductsmaynotresemblethosefoundinnaturalorserviceenvironmentsthistestcannotberecommendedforthepredictionoftheelectricalperformanceofcontactsunlesscorrelationisfirstestablishedwithserviceexperience.Thistestisintendedtobeusedforquantitativedescriptionsofporosity(suchasnumberofporesperunitareaorpercontact)oncoatingsthathaveasufficientlylowporedensitysothatthecorrosionsitesarewellseparatedandcanbereadilyresolved.Asageneralguidelinethiscanbeachievedforporedensitiesuptoabout100/cm.Abovethisvaluethetestsareusefulforthequalitativedetectionandcomparisonsofporosity.Avarietyofotherporositytestingmethodsaredescribedintheliterature[5][6].OtherISOporositytestmethodsaredescribedISO10308,ISO12687,ISO14647andISO15720.
【中国标准分类号】:A29
【国际标准分类号】:25_220_40
【页数】:7P.;A4
【正文语种】:英语