【英文标准名称】:Testsforthermalandweatheringpropertiesofaggregates-Part3:Boilingtestfor"Sonnenbrandbasalt";GermanversionEN1367-3:2001
【原文标准名称】:集料的热性能和抗风化性能试验.第3部分:"Sonnenbrandbasalt"沸点试验:德文版本EN1367-3:2001
【标准号】:EN1367-3-2001
【标准状态】:现行
【国别】:
【发布日期】:2001-06
【实施或试行日期】:
【发布单位】:欧洲标准学会(EN)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:测量试样;热稳定性;耐气候老化;数学计算;粒度分选;烹调;矿质集料;试样制备;特性;煮沸试验;机械性能;测定;抗风化能力;热性能;试验;解释;不集合特性;太阳照射暴露;钢厂熔渣;太阳照射燃烧;玄武岩;材料试验;实验室试验;定义;定义;耐力
【英文主题词】:Basalt;Boilingtests;Cooking;Definition;Definitions;Determination;Disintegrationcharacteristics;Grainsizing;Interpretations;Laboratorytests;Materialstesting;Mathematicalcalculations;Measuringsamples;Mechanicalproperties;Mineralaggregates;Properties;Resistance;Solarradiantexposure;Specimenpreparation;Steelmillslag;Sunburns;Testing;Thermalproperties;Thermalstability;Weatherresistance;Weatheringresistance
【摘要】:
【中国标准分类号】:Q13
【国际标准分类号】:91_100_15
【页数】:8P.;A4
【正文语种】:英语
基本信息
标准名称: | 半导体分立器件 3DK12型功率开关晶体管详细规范 |
英文名称: | Semiconductor discrete device-Detail specification for Type 3DK12 power switching transistor |
中标分类: |
矿业 >>
矿业综合 >>
技术管理 |
发布部门: | 中国电子工业总公司 |
发布日期: | 1992-11-19 |
实施日期: | 1993-05-01 |
首发日期: | 1900-01-01 |
作废日期: | 1900-01-01 |
提出单位: | 中国电子工业总公司科技质量局 |
归口单位: | 中国电子技术标准化研究所 |
起草单位: | 中国电子技术标准化研究所 |
起草人: | 蔡仁明、于佳业 |
出版社: | 电子工业出版社 |
出版日期: | 1993-04-01 |
页数: | 10页 |
适用范围
本规范规定了3DK12B~F型功率开关晶体管的详细要求。每种器件均按GJB33《半导体分立器件总规范》的规定,提供产品保证的三个等级(GP、GT和GCT级)。
前言
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目录
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引用标准
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所属分类: 矿业 矿业综合 技术管理
【英文标准名称】:StandardPracticeforStitchesandSeams
【原文标准名称】:针角和缝合的标准实施规程
【标准号】:ASTMD6193-2009
【标准状态】:现行
【国别】:美国
【发布日期】:2009
【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】:D13.54
【标准类型】:(Practice)
【标准水平】:()
【中文主题词】:
【英文主题词】:seams;stitches;textiles
【摘要】:Seamengineering,thedeterminationofthebeststitchtype,seamconfiguration,andthreadtypewhichshouldbeusedforaparticularassembly,requiresathoroughknowledgeofmanyvariables.Theimproperselectionofanyonecomponentcanresultinfailureofthesewnjunction,andultimatelyfailureoftheproductmanufactured.GeneralCharacteristics8212;Thecharacteristicsofaproperlyconstructedsewnseamarestrength,elasticity,durability,security,andappearance.Thesecharacteristicsmustbebalancedwiththepropertiesofthematerialtobejoinedtoformtheoptimumsewnseam.Theenduseoftheitemwillgoverntherelativeimportanceofthesecharacteristics.Theselectionoftheseamtypeandstitchtypeshouldbebasedupontheseconsiderations.Strength8212;Theseamefficiencyofthesewnseamshouldbeashighaspossible.Thiswillproducesewnseamstrengthwithabalancedconstructionthatwillwithstandtheforcesencounteredintheuseofthesewnitem.Theelementsaffectingthestrengthofasewnseamare:Fabrictypeandstrength,Seamtype,Stitchtype,Stitchdensity(spi),Threadtension,andThreadstrength.Elasticity8212;Theelasticityofasewnseamshouldbeslightlygreaterthanthatofthematerialwhichitjoins.Thiswillenablethematerialtosupportitsshareoftheforcesencounteredfortheintendedenduseofthesewnitem.Theelasticityofasewnseamdependsupon:Fabrictypeandstrength,Seamtype,Stitchtype,Stitchdensity(spi),Threadtension,andThreadelasticity.Durability8212;Thedurabilityofasewnseamdependslargelyuponitsstrengthrelativetotheelasticityoftheseamandtheelasticityofthematerial.However,inlesselastic,tightlywovenordensematerials,thereisatendencyforthepliestox201C;workx201D;orslideoneachother.Toformadurablesewnseaminthesetypesoffabrics,thethreadsizemustbecarefullychosen.Thestitchdensityalsoneedstobecarefullydeterminedforthematerialsoasnottocauseexcesstensionwhichwillunbalancetheelasticityandcausepuckering.Itisalsoimportanttominimizeabrasionandwearbycontactwithoutsideagenciestopromotedurability.Security8212;Thesecurityofasewnseamdependschieflyuponthestitchtype,spi,anditssusceptibilitytobecomeunraveled.Thestitchmustbewellsettothematerialtopreventsnaggingthatcancauseruptureofthethreadandunravelingofcertainstitchtypes.Appearance8212;Theappearanceofasewnseamgenerallyisgovernedbytheproperrelationshipbetweenthesizeandtypeofthread,thestitchdensity,andthetextureandweightofthefabric.Inadditiontothesegeneralcharacteristics,thetechniqueandskillofthesewingmachineoperatorsalsogoverntheappearanceofthesewnseams.SomeofthefactorswhichwilladverselyaffecttheappearanceareshowninTable1.TABLE1StitchandSeamDefectsStitchDefectsSeamAssemblynbsp;nbsp;nbsp;DefectsLoosestitches
Puckers