NF Q03-012-1984 纸张和纸板.光滑度测定(BEKK法)

上一篇: NF Q34-004-1984 卫生和家庭用品.餐巾纸.特性
下一篇: NF T54-074-1984 塑料.聚乙烯管.拉力特性的测定

【英文标准名称】:95-mmDiameterRigidDigitalRecordingDisk
【原文标准名称】:95mm直径刚性数字式记录盘
【标准号】:ANSIINCITS179-1990
【标准状态】:现行
【国别】:美国
【发布日期】:1990
【实施或试行日期】:
【发布单位】:美国国家标准学会(US-ANSI)
【起草单位】:ANSI
【标准类型】:()
【标准水平】:()
【中文主题词】:信息处理;信息系统;磁盘
【英文主题词】:Informationprocessing;Informationsystems;Magneticdisks
【摘要】:Providesthemechanical,physicalandmagneticpropertiesofalow-frictiondiskwithadiameterof95mm(3.740inches)andwithatypicalrecordingdensityof31.5trackspermillimeter(tpmm)(800trakcsperinch(tpi))with567fluxtransitionspermillimeter(ftpmm)(14400fluxtransitionsperinch(ftpi))ataradiusof23mm(0.900inch).
【中国标准分类号】:L64
【国际标准分类号】:35_220_21
【页数】:26P.;A4
【正文语种】:英语


【英文标准名称】:Weldingconsumables-Tubularcoredelectrodesforgas-shieldedandnon-gas-shieldedmetalarcweldingofhigh-strengthsteels-Classification
【原文标准名称】:焊接消耗品.高强度钢的气体保护和非气体保护金属极电弧焊用药芯电极.分类
【标准号】:ISO18276-2005
【标准状态】:现行
【国别】:国际
【发布日期】:2005-02
【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/TC44
【标准类型】:()
【标准水平】:()
【中文主题词】:焊接;气体保护金属极电弧焊;焊丝电极;填充金属;储存;吸湿干燥;耐热的;蠕变阻力;焊条;名称与符号;作标记;电焊条;气体保护焊;规范(验收);焊接工程;钢;棒材;芯焊丝电极;电弧焊接;电焊;分类;焊接填充金属;化学成分;金属线
【英文主题词】:Arcwelding;Bars(materials);Chemicalcomposition;Chemicalproperties;Classification;Classificationsystems;Coredwireelectrode;Creepresistance;Desiccation;Designations;Electricwelding;Electrodes;Fillermetal;Gasmetal-arcwelding;Gasmixtures;Gases;Gas-shieldedwelding;Heat-resistant;High-tensilesteels;Marking;Marks;Properties;Protectivegases;Specification(approval);Steelwelding;Steels;Storage;Welding;Weldingelectrodes;Weldingengineering;Weldingfillermetals;Weldingrods;Wireelectrodes;Wires
【摘要】:ThisInternationalStandardspecifiesrequirementsforclassificationoftubularcoredelectrodeswithorwithoutagasshieldformetalarcweldingofhigh-strengthsteelsintheas-weldedconditionorinthepost-weldheat-treatedconditionwithaminimumyieldstrengthhigherthan550MPaoraminimumtensilestrengthhigherthan590MPa.Onetubularcoredelectrodecanbetestedandclassifiedwithdifferentshieldinggases,ifusedwithmorethanone.Thisdocumentisacombinedspecificationprovidingclassificationutilizingasystembasedupontheyieldstrengthandanaverageimpactenergyof47Joftheall-weldmetal,orutilizingasystembaseduponthetensilestrengthandanaverageimpactenergyof27Joftheall-weldmetal.1)Subclausesandtableswhichcarrythesuffixletter"A"areapplicableonlytotubularcoredelectrodesclassifiedunderthesystembasedupontheyieldstrengthandanaverageimpactenergyof47Joftheall-weldmetalgiveninthisInternationalStandard.2)Subclausesandtableswhichcarrythesuffixletter"B"areapplicableonlytotubularcoredelectrodesclassifiedunderthesystembaseduponthetensilestrengthandanaverageimpactenergyof27Joftheall-weldmetalgiveninthisInternationalStandard.3)Subclausesandtableswhichdonothaveeitherthesuffixletter"A"orthesuffixletter"B"areapplicabletoalltubularcoredelectrodesclassifiedunderthisInternationalStandard.Itisrecognizedthattheoperatingcharacteristicsoftubularcoredelectrodescanbemodifiedbytheuseofpulsedcurrentbut,forthepurposesofthisInternationalStandard,pulsedcurrentisnotusedfordeterminingtheelectrodeclassification.
【中国标准分类号】:J33
【国际标准分类号】:25_160_20
【页数】:23P;A4
【正文语种】:英语